ECAT Pre Computer Science Chapter 14 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 14 Electromagnetism

Try The MCQ's Test For ECAT Physics Chapter 14 Electromagnetism

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ECAT Physics Chapter 14 Electromagnetism

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Question # 1

When an electron enters in a magnetic field right angle to its motion, the magnitude of its velocity will be

Question # 2

Hold the solenoid in the right hand with fingers curling in the direction of current. The direction of the field will be given by:

Question # 3

A voltmeter is used to measure the

Question # 4

The vector representation of force experience give the direction of

Question # 5

'K' is the proportionality constant of force experienced by conductor. What is the value of 'K' in SI units?

Question # 6

The SI unit of magnetic induction is

Question # 7

The voltage increases linearly with

Question # 8

The permeability of free space is measured in:

Question # 9

Resistance is measured in

Question # 10

The current is measured in

Question # 11

The magnetic field in the middle of a solenoid due to current is

Question # 12

A beam of electrons is provided by an

Question # 13

Charge to mass ratio (e/m) of an electron is given by the relation

Question # 14

The force experienced by charged particle is maximum, if it moves

Question # 15

The gavanometer constant of a moving coil galvanometer is given by

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 Total number of turns on 0.15 m length solenoid is 300. the value of n is:
A. Greater than 300
B. Smaller than 300
C. Equal to 300
D. Any of (A) or (B)
2 The direction of lines of force depends upon the direction of
A. voltage
B. current
C. charges
D. none of these
3 The voltage increases linearly with
A. time
B. velocity
C. acceleration
D. torque
4 The galvanometer can be made sensitive if the value of the factor C/BAN is
A. constant
B. small
C. large
D. none of these
5 Electron gun consist of
A. three anodes
B. heating cathode
C. three anodes
D. three anodes , heating cathode, grid
6 A shunt resistance parallel to the galvanometer is used to convert it into
A. avometer
B. millimeter
C. voltmeter
D. none of these
7 In a moving coil galvanometer, the deflecting couple depends upon
A. area of the coil
B. number of turns of coil
C. value of magnetic field
D. all of the above
8 Galvanometer is a device used for the detection of
A. voltage
B. current
C. temperature
D. pressure
9 The gavanometer constant of a moving coil galvanometer is given by
A. K=BAN/C
B. K=BN/CA
C. K=NAC/B
D. K=C/BAN
10 Weber is a unit of
A. magnetic flux
B. magnetic filed intensity
C. magnetic induction
D. magnetic flux density

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