A transformer has 130,000 turns in its primary coil and is connected to an ac power supply of 48.0V. The secondary coil contains 4000 turns and is connected to a 150.0 ohm load. 1) voltage of the secondary coil 2) current in secondary coil

Q: A transformer can do all of the following except: A) step­-up a/c voltage B) step­-up a/c current C)…

A: The transformer is a device which is used in AC power transmission of electric energy. By using the…

Q: An electric train for children operates at a voltage of 8 V. We plug in a transformer having a…

A: Given data: Number of turns in Primary coil (Np) = 930 Primary Voltage (Vp) = 120 V Secondary…

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Q: The primary coil of a transformer has 888,960 loops. The secondary coil has 3,923 loops. The primary…

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Q: The primary of a step-down transformer connected to a 240 V source has 1500 turns.  The secondary…

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Q: A transformer has 8,092 turns on the primary coil and 213 turns on the secondary coil. The RMS…

A: Number of turns on primary coil, Np = 8092 Number of turns on secondary coil, Ns=213 RMS voltage on…

Q: For Transformer winding1 N1=1000 turns, N2= 200 turns and V1=220 Volts, secondary resistance of 22…

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Q: a transformer has 500 turns on its secondary its primary has 200 turns the primary is connected to a…

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Q: A transformer with 1140 turns in its primary coil has to decrease the voltage from 4180 V to 220 V…

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Q: Calculate the voltage output by the secondary winding of a transformer if the primary voltage is 230…

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Q: Using various types of transformers, give 1 impact to the end-users per type of transformer in terms…

A: A basic transformer consists of two coils that are electrically differentiated and inductive, but…

Q: The generator at a power plant produces AC at 21,000 V. A transformer steps this up to 375,000 V for…

A: The operation of transformer relies on the principle of electromagnetic induction. By wrapping wire…

Q: 220 V is supplied across 1200 windings of the primary coil of the autotransformer. If 1650 windings…

A: Voltage , V  = 220 V  Windings , N1 = 1200  Windings , N2 = 1650  To find = voltage

Q: She suggests that he modify an old transformer that they don't need anymore to do the job. The old…

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Q: The primary coil of a transformer has 130 turns. The secondary coil has 520 turns. If the secondary…

A: Given: The primary turn of the transformer is 130. The secondary turn of the transformer is 520. The…

Q: A transformer is used to supply a 10 V model train with power from a 114 V wall plug. The train…

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Q: . A arc welding transformer provides an output voltage of 10,030 V at 53.0 mA with an input voltage…

A: Given:-                Output voltage V0 = 10,030 VCurrent I0 = 53.0 mA.

Q: A transformer for a household appliance changes the voltage from a 120-Volt outlet to the 20.5 Volts…

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Q: A transformer has 25 turns in the primary coil and 200 turns in the secondary coil.  If 24 V is…

A: Given : Np = 25 Ns = 200 Vp = 24 V R = 20-Ω

Q: The generator at a power plant produces AC at 20,000 V. A transformer steps this up to 355,000 V for…

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Q: turns

A: A transformer transforms energy from the primary to the secondary coil through mutual induction in…

Q: A Step-Up Transformer Increases   A) Power B) Current C) Frequency D) Voltage

A: The power remains constant in the Step-up transformer. The product of the current and voltage…

Q: The generator at a power plant produces AC at 22,000 V. A transformer steps this up to 355,000 V for…

A: Given data: Voltage of primary coil (Vp) = 22,000 V Voltage of secondary coil (Vs) = 355,000 V…

Q: Question 17 The primary coil of a transformer has 100 loops and is connected to a circuit with 120…

A: Concept

Q: A transformer has an efficiency of 80%. It works at 4 kW and 100 V. If the secondary voltage is 240…

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Q: What is the inductance of a coil whose resistance is 118 Ω if it draws 0.42 A from a 112-V, 53-Hz…

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Q: What electrical quantity cannot be changed by a transformer

A: What electrical quantity cannot be changed by a transformer.

Q: Name the transformer used in the (a) power generating station (b) power sub station. State the…

A: (a).The transformer used in the power generating station is step-up transformer of high voltage…

Q: In a television set the power needed to operate the picture tube comes from the secondary of a…

A: Given that, Voltage of primary coil = 120 V Power of secondary coil = 89 W Current in secondary…

Q: The primary windings of a transformer which has an 88%efficiency are connected to 110-V ac. The…

A: Given data: The efficiency of the transformer is η=88%. The voltage at the primary winding of the…

Q: Neon signs require 12,000 V to operate. Suppose that a transformer for a neon sign is plugged into…

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Q: A generator produces 35 A of current at 240 V. The voltage is increased to 12,000 V using a step-up…

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Q: The primary coil of a transformer has 100 loops and is connected to a circuit with 120 volts…

A: We know that   N1/N2=V1/V2 N1=100 V1=120 Volts N2=50

Q: A model-train transformer plugs into 120-V ac and draws 0.32 A while supplying 7.8 A to the train.

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Q: A transformer with more windings on the primary coil than on the secondary coil...

A: Given, A transformer which has more winding turn in primary than secondary.

Q: The secondary coil of a step-up transformer provides the voltage that operates an electrostatic air…

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Q: A typical wall outlet voltage in the United States is 120 volts. Personal MP3 players require much…

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Q: A series DC motor has a resistance of 7 Q between its terminals. The motor runs at 1,259 rpm at 230…

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Q: The charger cord used to recharge a cell phone contains a transformer that reduces l20 V AC to 5…

A: VpVs=NpNsNs=VsVpNp

Q: The doorbell on your house requires a 12 volt alternating current. A transformer having a primary…

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Q: A step-up transformer is designed to produce 1840 V from a 112-V ac source. If there are 384 turns…

A: In an ideal transformer  VPVS=NpNs 1121840=Np384

Q: Suppose that there was a situation where a transformer contains 150 turns on the first coil and 800…

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Q: A transformer has 100 turns on the primary and 500 turns on the secondary. The primary is connected…

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Q: Primary coil of a transformer connected to 120v source draws a 12a. Secondary coil has 800 turns and…

A: Given: Supply voltage (εp) = 120 V. Current in primary coil (ip) = 12 A. Turns in secondary coil…

Q: A transformer consists of a 781-turn primary coil and a 6809-turn secondary coil. If the current in…

A: Find the primary current flows in the transformer. N1N2=I2I1N2N1=I1I2I1=I2N2N1I1=2.78 A6809781=24.2…

Q: The generator at a power plant produces AC at 23,000 V. A transformer steps this up to 365,000 V for…

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