a resistor of R ohms is connected across a battery of E volts with internal resistance r ohms, then the power (in watts) in the external resistor is P=E2R/(R+r)2 If E and r are fixed but R varies, what is the maximum value of the power
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solve this problem and explain each step, please
a resistor of R ohms is connected across a battery of E volts with internal resistance r ohms, then the power (in watts) in the external resistor is
P=E2R/(R+r)2
If E and r are fixed but R varies, what is the maximum value of the power?
Step by step
Solved in 2 steps
- I have attached the formulas and values tahat we use for reference. Please include a detailed solution. Thank you! Question:When two resistors A and B are connected in series, the total resistance is 36 ohms. When connected in parallel, the total resistance is 8 ohms. What is the ratio of the resistance RA to resistance RB? Assume RA < RB and express the answer in decimal form.Constants Two resistors of resistance R; = 3.00 N and R6 = 3.00 N are added to the network, and an additional resistor of resistance R7 = 3.00 N is connected by a switch, as shown in the diagram..(Figure 2) Find the equivalent resistance RB of the new resistor network when the switch is open. Consider the network of four resistors shown in the Express your answer in ohms. diagram, where R1 = 2.00 N , R2 = 5.00 N , R3 = 1.00 2, and R4 =7.00 N. The resistors are connected to a constant voltage of magnitude V. (Figure 1) %3D View Available Hint(s) ? RB : Submit Part C <) 2 of 2 Find the equivalent resistance Rc of the resistor network described in Part B when the switch is closed. Figure Express your answer in ohms. View Available Hint(s) R6 R3 ν ΑΣφ ? Ω Rc %3D R1 R2 R7 Submit V R5 R4 ww wwCan you pls help me solve this. 5 resistors are connected as shown in the figure. The voltage on AB is 30V and the total resistance is 2 ohms. The voltage across resistor 1 is 14.25V and the current passing resistor 3 is 6 amperes. Determine the total current of the circuit and all other unknowns (r4 = 6 ohms, r5 = 10 ohms) Solve for: (a) Resistance of R2 (b) current through I4 (c) current through I1 (d) voltage across R4 (e) voltage across R2 (f) voltage across R3 (g) Total current *Pls refer from the photo attached* •Pls answer with complete and detailed solution (3 decimal places all final answers with correct units) •Sketch an illustration/diagram with labels (this is a must; for a better understanding) Thank you I will give your answer a LIKE for helping me... **Pls refer from the photo attached. •Pls answer with complete and detailed solution (3 DECIMAL PLACES all final answers with correct units) •Sketch an illustration/diagram with…
- Choose. A. If I and 2 are correct B. If 2 and 3 are correct C. If 1 only is correct D. If 3 only is correct Directions Summarised B. D. 1,2 2, 3 3 only only only onlyPart E Calculate the current through each resistor in the figure if each resistance R=1.38 kf and V 12.0 V .(Figure 1) Calculate the current through resistor e. Express your answer with the appropriate units. I, = Value Units Figure Submit Request Anewer 1 of 1 Part F ww Calculate the current through resistor t. R Express your answer with the appropriate units. A ww HA ? R. It = Value Units Submit Request AnswerDraw a circuit with a battery and three resistors. R1 and R 2 are in series with eachother and the battery. R3 is in parallel with R2 . Calculate the equivalent resistance of thecircuit if R 1 = 1k, R 2 = 2k, and R 3 = 3k.
- To extend the useful range of a voltmeter, an additional resistor, Rseries, is placed in series with the voltmeter as shown in the figure above right. If the internal resistance of the voltmeter is Ri,V, determine the resistance that the added series resistor has to have to extend the useful range of the voltmeter by a factor N. Then, calculate the resistance the series resistor must have to allow a voltmeter with an internal resistance of 1.00 MΩ and a maximum range of 1.00 V to measure potential differences up to 100. V. What fraction of the total 100.-V potential drop occurs across the voltmeter, and what fraction of that drop occurs across the added series resistor?Find the expression for the equivalent resistance of 3 resistors (R1.R2.R3) connected in parallel. Sol. In a parallel connection, voltage drops across the resistors so: Using, Ohm's Law V=1 we derive, that 2 = V2/ I3=V3/ Since, the voltage is the same on all resistors, then V= V = Substituting to the, first equation above, we get the following |= V1/ + V2/ + V3/ So: 1 1 1 + + R2 1. Rea R1 R3For questions 3 and 4 refer to the following diagram. All resistors are 10 Ohms., All Capacitors are 1 micro Farad and a 6 Volt source is placed in the open section at the bottom of each circuit Which circuit will dissipate the most amount of energy per second after the circuit has been connected for a long length of time? R R R R Selected Coordinates Clear
- You want to determine the emf & and internal resistance r of a battery you found, as well as the resistance R of a resistor, so you connect a voltmeter and an ammeter (both assumed to be ideal) as shown in the figure on the right. a) What is the resistance of an ideal voltmeter? b) What is the resistance of an ideal ammeter? When the switch is open, the voltmeter shows a reading of V₁ = 12 V and the ammeter shows a reading of I₁ = 0 A. You close the switch and the readings change to V₂ = 9 V and I₂ = 3 A. c) What is the circuit resistance R? d) What are the emf & and internal resistance r of the battery? r E R AIn the schematic below two batteries are in series and drive current through the circuit as shown. The first resistor has a voltage drop AV1= 2 V, the middle resistor has a resistance of R = 69 Q, and the last resistor has a voltage drop AV2 = 1.1 V. Given these parameters, what is the magnitude of current flowing through the circuit in milli-amps (mA)? Giver your answer to 3 significant figures. 3.0 V 4.5 V AV.The system of resistors shown in figure 1 has an effective resistance of 1.50. Calculate the resistance R of the upper resistor. Figure 1: A system of resistors.