NDA PHYSICS QUIZ - 20

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Question 1:

You are given one hundred 1Ω resistors. What is the largest resistance you can make in a circuit using these?

Question 2:

100 joules of heat is produced per second in a 4 ohm resistor. What is the potential difference across the resistor ?

Question 3:

Which of the following are good conductors of electricity?

Question 4:

The resistivity of a wire depends on which of the following?

Question 5:

Which of the following is the frequency of alternating current in India?

Question 6:

The direction of magnetic field around a current carrying metallic wire is given by- 

Question 7:

A Galvanometer can be converted into a voltmeter by –

Question 8:

An electric generator works on the principle of-

Question 9:

The parallel combination is preferred over the series combination due to which of the following reasons?

Question 10:

A domestic lighting circuit has a fuse of 5 A. If the mains supply is at 230 V, calculate the maximum number of 36 W tube-lights that can be safely used in this circuit.