Will a transformer operate if a battery is used for the input voltage across the primary? Explain.

Q: An American traveler in Kenya carries a transformer to convert Kenya's standard 240 V to 120 V so…

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Q: A large power plant generates electricity at 12.0 kV. Its old transformer once converted the voltage…

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Q: True or False:  An example of a step-down transformer would be a household appliance changing the…

A: We know there are two types of transformers one is step up and other is step down. A step up…

Q: Why doesn’t a transformer work with direct current? Why is ac required?

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Q: Explain why a transformer works for AC currents but not for DC currents

A: transformer work only on ac supply because A transformer needs an alternating current that will…

Q: The output power of an ideal transformer is

A: The output power of an ideal transformer is always same as input power. because transformer does not…

Q: A transformer with more primary turns than secondary turns will produce a secondary voltage higher…

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Q: A transformer transfers 220,000 W of the 250,000 W of energy supplied to it. How efficient is the…

A: Given value--- input power = 250000 W. output power = 220000 W. We have to find--- efficiency of…

Q: 4. (a 5) Power stations are normally far away from the customers. A transformer is often used to…

A: Given that- 5. (a) A TRANSFORMER TO DETERMINE THAT why do we use to high voltage to transmit the…

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: Q11. What resistance should be added in series with a 3.0-H inductor to complete an LR circuit with…

A: Given Inductance L      = 3.0 H Time constant τ = 4.0 ms = 4×10-3 s Find the resistance, as…

Q: Why does a transformer require ac?

A: The working principle of a transformer is mutual induction.

Q: What is Electromagnetic Induction (EMI)? Differentiate a transformer with a generator

A: To determine,What is Electromagnetic Induction (EMI) and Differentiate a transformer with a…

Q: When the current through a large inductor is interrupted with a switch, an arc appears across the…

A: In an inductor an induced emf is produced when current flows through it due to mutual inductance.

Q: A coil has a self inductance of 10 Henry. If the current through the coil changes at a rate of 5…

A: Self inductance (L) =10 henry Current through coil changes at a rate of 5 Amps per second Emf will…

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

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Q: Why can a hum usually be heard when a transformer is operating?

A: A transformer is a device which is used to convert high to low and low to high ac voltages.

Q: Please explain what happens when the efficiency of a transformer increases and when the percentage…

A: 1. A transformer is a device that transfers electrical energy from one circuit to another through…

Q: explain why a transformer may be operated only on AC?

A: Transformer works only in a.c because it works on the principle of the rate of change of magnetic…