15- The current-time graph of an alternating current source is as shown in the figure. Since the rms value of the current is 50/2 Amperes, what is the equation of the current? Current (A) 3/1 400 100 Time (s) 400 200

15- The current-time graph of an alternating current source is as shown in the figure. Since the rms value of the current is 50/2 Amperes, what is the equation of the current? Current (A) 3/1 400 100 Time (s) 400 200

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter20: Electric Current, Resistance, And Ohm's Law

Section: Chapter Questions

Problem 81PE: Two different electrical devices have the same power consumption, but one is meant to be operated on...

See similar textbooks

Related questions

Q: 5. A transformer has 150 coils in its primary coil which is connected to 50 V of AC supply. If its…

Q: Provide six key concepts about Inductance and briefly discuss each

A: Definition of Inductance: Inductance is the magnetic flux that is relative to the rate…

Q: Why are two wires used to carry electric current instead of a single one? Explain in not less than 3…

A: Given For electric current to pass we use two wires We have to find the answer, why do we not use…

Q: 3. Determine the temperature of the field winding of a series motor when its resistance had…

A: Final Resistance R2 = 240 Ω Initial Resistance R1 = 120 Ω Initial Temperature T1 = 15°C Temperature…

Q: 7. A pair of power transmission lines each have 2.25-2 resistance and carry 800 Amp. If the primary…

A: A pair of power transmission lines each have 2.25 ohms resistance and carry 800 amp. If the primary…

Q: 1a. State the similarities between the last stages in the process for generation of electricity that…

A: (1a) In the last stage process of generating electricity, in a hydroelectric, Bicycle dynamo, wind,…

Q: Why are two wires used to carry electric current instead of a single one? Explain in not less than…

A: The answer is below

Q: 644-ELECTRONICS LAB..-5 In the half wave rectifier circuit, if the maximum output signal is 12.3…

Q: 4. In your own words,state Faraday's laws of electromagnetic induction. Distinguish between…

A: Given that - Fariday law of electromagnetic induction Staticaly induced imf, and dynamically induced…

Q: 4) A transformer is a device used to A) increase or decrease an ac voltage. B) transform a direct…

A: A transformer consists of a primary coil and a secondary coil. The primary coil acts as input…

Q: 10. An outer metal ring surrounds an inner metal ring, as shown in the figure. The current in the…

Q: 31) A loop of wire is placed in a magnetic field as shown. If the magnetic field's strength is…

A: Given that Initial Magnetic field B1 = 2 T Final Magnetic field B2 = 20 T Time t = 3 s Area of the…

Q: 3. Why is Faraday's law important? Faraday's law looks at how changing magnetic fields can cause…

A: Faraday's law gives Idea about electromotive force (emf) induced in a conductor . When a conductor…

Q: 8. A transformer used to step up 110 V to 5000 V has a primary coil of 100 turns. What must be the…

Q: Alternating current oscillates, meaning that the amplitude and direction of the current changes in a…

A: Frequency of AC in usa is 60 Hertz

Q: A magician places an aluminum ring on a table with a hidden electromagnet underneath. When the…

Q: 12 Determine the direction of the induced current in the wire in the figure? A- Up B- Down C- Right…

A: A wire in a magnetic field . To find = direction of induced current

Q: X- Albert Einstein based his relativity theory on Faraday's equations. Y- The positive and negative…

A: Solution

Q: A choke coil in series with a lamp is connected to a dc line. The lamp is seen to shine brightly.…

A: Given: A choke coil

Q: 8- However, even when the field current is zero, some amount of emf is generated (represented by…

A: Given .... Fill in the blanks... Load voltage, v = 120 V Induced open current voltage, V = 127 Volt…

Q: Calculate the size of the magnetic field 19 m below a high voltage power line. The line carries 530…

Q: he figure shows a wire loop made of copper wire with a radius of 0.1 cm with side lengths of 20 cm x…

A: Given Radius of wire- 0.1cm Crossection of the loop- 20*80 cm B=30T (perpendicular to the loop)…

Q: A spacecraft orbiting the Earth has a coil of wire in it. An astronaut measures a small current in…

A: Given A spacecraft orbiting the Earth has a coil of wire in it. An astronaut measures a small…

Q: (14) If the peak AC voltage is 150 volts, what is the rms voltage? 1- 75 volts 2- 10° volts 3- 120…

A: Given: Peak value of AC voltage, Vp = 150 V

Q: If the capacitors as shown are replaced by inductors, which acts as a low-frequency filter and which…

Q: 10. An electric power station that operates at 15 kV and uses a 20:1 step-up ideal transformer is…

A: Given data; The output voltage of the transformer is V=20×15=300 kV The produced power is P=300 MW…

Q: Activity 1- AC and DC Current Direction: Look around your house, name at least 6 devices that uses…

A: AC Current : An electric current which periodically reverses direction and changes its magnitude…

Q: Explain briefly in one(1) sentence why a back emf is “zero” during motor starting.

Q: 2-Set two coils, 600 (primary) and 200 turns (secondary) onto the iron core. Connect the primary to…

Q: On the freeway, there are also induction loops to detect cars’ speed. Concidering when you move a…

A: In the coil, the voltage is induced due to the relative motion between the coil and the magnet.

Q: 26. Which of the following quantities increases at the secondary coil of an idea step-down…

A: The power output in the step-down transfer is: P=VII=PVI α 1V

Q: Explain alternating current (ac)?

A: Alternating current

Q: 9. Suppose the wire in a cars alternator is wrapped 500 times. It takes an average of 2.5x10 seconds…

A: Write a given values of this question. N=500t=2.5×10-4sϕ=2×10-4Web

Q: 5- The bar magnet shown in the figure is moved completely through the loop. Find the direction of…

A: Given: A bar magnet and it is inserted to a loop connected to circuit with resistor.

Q: What is that current going into any point in a dc circuit is the same as the current going out?…

A: It is Kirchoff 's first law . According to - Kirchoff 's 1st law - sum of current entering at…

Q: magnetic induction at the centre of the

A: Given; Acc. to given figure; Infinity long straight conductor is bent into shape. It carries a…

Q: 15. Which of the following statements describes how a generator functions? A generator changes the…

Q: 1- Faraday's law state that a. emf is induced in a loop as it moves through an electric field b. the…

A: discuss about the faraday's law.

Q: 28b) When load current increases, the terminal voltage of DC shunt Generator is reduced. Justify

Q: 16. As shown in the figure, two parallel wires carry a current I in opposite directions, and this…

A: Using Lenz's law: Induced current in the loop will be such that it will resist the change in…

Q: In 150 words, describe how a generator produces an electric current using electromagnetic induction.…

Q: wo coils are placed close together in a physics lab to demonstrate Faraday's law of induction. A…

A: Initial current ,I1=4.90A final current, I2=0A time required, dt=1.4*10-3s so di/dt…

Question

15- The current-time graph of an alternating current source is as shown in the figure. Since the ms value of the current is
50/2 Amperes, what is the equation of the current?
Current (A)
1 11
400 200,
Time (s)
400 100

a) O (t)= 100/2Sin100nt
b) (t)= 50v2Sin100at
c) (t)= 100/2Sin200nt
d) (t)= 100Sin200nt
e) It) 100/2Sin300nt
Leave blank

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

While taking a bath, a person touches the metal case of a radio. The path through the person to the drainpipe and ground has a resistance of 4000 . What is the smallest voltage on the case of the radio that could cause ventricular fibrillation?
During open-heart surgery, a defibrillator can be used to bring a patient out of cardiac arrest. The resistance of the path is 500 and a 10.0-mA current is needed. What voltage should be applied?
Integrated Concepts A light-rail commuter train draws 630 A of 650-V DC electricity when accelerating, (a) What is its power consumption rate in kilowatts? (b) How long does it take to reach 20.0 m/s stalling from rest if its loaded mass is 5.30 1()4 kg, assuming 95.0% efficiency and constant power? (c) Find its average acceleration. (d) Discuss how the acceleration you found for the light-rail train compares to what might be typical for an automobile.
While taking a bath, a person touches the metal case of a radio. The path through the person to the drainpipe and ground has a resistance of 4000- . What is the smallest voltage on the case of the radio that could cause ventricular fibrillation?
Unreasonable Results (a) What current is needed to transmit 1.00 102MW of power at 480 V? (b) What power is dissipated by the transmission lines if they have a 1.00 -resistance? (c) What is unreasonable about this result? (d) Which assumptions are unreasonable, or which premises are inconsistent?
Integrated Concepts Use the ECG in Figure 20.34 to determine the heart rate in beats per minute assuming a constant time between beats. Figure 20.34 A lead II ECG with corresponding arterial blood pressure. The QRS complex is created by the depolarization and contraction of the ventricles and is followed shortly by the maximum or systolic blood pressure. See text for further description.
Integrated Concepts (a) What is the direction of the force on a wire carrying a current due east in a location where the Earth’s field is due north? Both are parallel to the ground. (b) Calculate the force per meter if the wire carries 20.0 A and the field strength is 3.00105T. (c) What diameter copper wire would have its weight supported by this force? (d) Calculate the resistance per meter and the voltage per meter needed.
A long, inexpensive extension cord is connected from inside the house to a refrigerator outside. The refrigerator doesn't run as it should. What might be the problem?
Foolishly trying to fish a burning piece of bread from a toaster with a metal butter knife, a man conies into contact with 120-V AC. He does not even feel it since, luckily, he is wearing rubber-soled shoes. What is the minimum resistance of the path the current follows through the person?
Find the current through a person and identify the likely effect on her if she touches a 120-V AC source: (a) if she is standing on a rubber mat and offers a total resistance of 300 k; (b) if she is standing barefoot on wet grass and has a resistance of only 4000 k .
Common household appliances are rated at 110 V, but power companies deliver voltage in the kilovolt range and then step the voltage down using transformers to 110 V to be used in homes. You will learn in later chapters that transformers consist of many turns of wire, which warm up as current flows through them, wasting some of the energy that is given off as heat. This sounds inefficient. Why do the power companies transport electric power using this method?
A GFI may trip just because the live/hot and neutral wires connected to it are significantly different in length. Explain why.