Question 1

A wheatstone bridge consists of

Accepted Answer

4 resistors

Answer

2 diodes

Answer

2 resistors

Answer

3 resistors

Question 2

An instrument used for measuring the value of an unknown resistance is called

Accepted Answer

wheatstone bridge

Answer

potentiometer

Answer

voltmeter

Answer

galvanometer

Question 3

An ideal voltmeter would have an infinite

Accepted Answer

resistance

Answer

current

Answer

none of these

Answer

voltage

Question 4

The emf of two cells can be compared by

Accepted Answer

potentiometer

Answer

voltmeter

Answer

wheatstone bridge

Answer

ammeter

Question 5

The terminal potential difference of a battery with internal resistance r and emf e is

Accepted Answer

e - Ir

Answer

e/Ir

Answer

e+Ir

Answer

exIr

Question 6

What is the power used by a 20 ohm resistor when 5A current passes through it?

Accepted Answer

500W

Answer

0.500 W

Answer

1000W

Answer

none

Question 7

Thermistor can be used for the accurate measurement of

Accepted Answer

temperature

Answer

resistance

Answer

heat

Answer

voltage

Question 8

The proportionality constant between current and potential difference is

Accepted Answer

R

Answer

none

Answer

V

Answer

C

Question 9

Dirft velocity of electrons in a conductor is:

Accepted Answer

10^-3 m/s

Answer

10^2 m/s

Answer

10^3 m/s

Answer

10^-2 m/s

Question 10

Kirchoff's first rule is conservation of

Accepted Answer

charge

Answer

none of these

Answer

voltage

Answer

current

Related quizzes

Related quizzes