Physics - Mock Test 34

Question 331

Internal resistance is the resistance offered by?

A) source of e m f B) conductor C) resistor D) capacitor

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Question 332

Circuit which gives continuously varying potential is called?

A) complex network B) wheat stone bridge C) potential divider D) all of above

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Question 333

Reciprocal of resistivity is called?

A) resistance B) inductance C) conductivity D) flexibility

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Question 334

Which one is the best material for making connecting wires?

A) iron B) tungsten C) silver D) copper

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Question 335

Resistance of an ideal insulator is?

A) infinite B) zero C) finite D) depends upon nature

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Question 336

Resistance of a super conductor is?

A) finite B) infinite C) zero D) changes with every conductor

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Question 337

An immersion heater of 400 watts kept on for 5 hours will consume electrical power of?

A) 2KWh B) 20KWh C) 6KWh D) 12KWh

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Question 338

How much heat does a 40 W bulb generates in one hour?

A) 144000J B) 144J C) 1.44J D) 14J

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Question 339

Thermocouples convert?

A) heat energy into electrical energy B) heat energy into light energy C) heat energy into mechanical energy D) mechanical energy into heat energy

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Question 340

One kilowatt hour is the amount of energy delivered during?

A) one second B) one day C) one minute D) one hour

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