Physics - Mock Test 33

Question 321

Which one of the following materials is useful for making bulb filaments?

A) constantan B) nichrome C) copper D) tungsten

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Question 322

If 1 ampere current flows through 2m long conductor the charge flow through it in 1 hour will be?

A) 3600C B) 7200C C) 1C D) 2C

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Question 323

In liquids and gases the current is due to the motion?

A) negative charges B) positive charges C) both negative and positive charges D) neutral particles

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Question 324

In the following figure, the terminal potential is?

A) zero B) 2V C) 12V D) 36V

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Question 325

An electric iron is marked 20 volts 500W. The units consumed by it in using if for 24 hours will be?

A) 12 B) 24 C) 5 D) 1100

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Question 326

Specific resistance of a wire?

A) will depend on its length B) will depend on its radius C) will depend on the type of material of the wire D) will depend on none of the above

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Question 327

Resistance of a wire on increasing its temperature will?

A) increase with rise in temperature B) decrease with rise in temperature C) will remain same D) depends upon altitude of experimentation

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Question 328

Resistance between points A and B in the circuit shown in figure is?

A) 4? B) 6? C) 10? D) 8?

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Question 329

The current in the circuit shown in figure - What will be the current in the circuit?

A) 1/45A B) 1/10A C) 1/5A D) 5A

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Question 330

There are three bulbs of 60W 100W and 200W which bulb has thickest filament?

A) 100W B) 200W C) 60W D) all

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