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

The voltage increases linearly with

Question # 2

In order to make a voltmeter, high resistance is connected with galvanometer, in

Question # 3

The galvanometer can be made sensitive if the value of the factor C/BAN is

Question # 4

A galvanometer is an instrument used to

Question # 5

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 # 6

In the formula B= µ̻ nl, the symbol n denotes:

Question # 7

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

Question # 8

A beam of electrons is provided by an

Question # 9

When current passes through a solenoid coil, it behaves like a

Question # 10

The angle of deflection of coil can be measured by the

Question # 11

The straight current carrying conductor experiences maximum force in a uniform magnetic field when it is placed

Question # 12

The force acting on a charge moving in a magnetic field

Question # 13

A meter wire carraying a current of 2A is at right angle to the uniform magnetic field of 0.5 Weber/m2The force on the wire is

Question # 14

The direction of lines of force depends upon the direction of

Question # 15

NmA-1 is commonly called:

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The CRO is used for displaying the waveform of a given
A. current
B. voltage
C. both of them
D. none of them
2 The strength of magnetic field around the current conductor is
A. Smaller near the conductor
B. Greater near the conductor
C. Greater at the large distance from the conductor
D. Constant near and away from the conductor
3 The SI unit of flux density is.
A. Tesla
B. Weber
C. Gaun
D. Weber/meter
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 (CRO) Cathode ray oscilloscope is a device used for high speed
A. velocity
B. graph plotting
C. time-velocity
D. none of these
6 The force exerted on a conductor of length L, carrying current I when placed in a magnetic field B is given by
A. F=IB/L
B. F= L x B/I
C. F = IL x B
D. F = IL . B
7 Method "lamp and scale arrangement" used to measure the
A. angle of deflection
B. restoring torque
C. magnetic field strength
D. current
8 The SI unit of magnetic induction is tesla which is equal to
A. Newton/ampere-meter or N/A-m
B. Newton/ampere2-meter or N/A2-m
C. Newton/ampere2-meter2 or N/A2-m2
D. Newton/ampere2-meter2or N/A2-m2
9 A galvanometer is an instrument used to
A. measure voltage across a circuit
B. detect current in a circuit
C. measure current flowing through a circuit
D. none of these
10 If current through conductor is 1 A and length of conductor is 1m placed at right angle to the magnetic field, then the strength of magnetic field is
A. F = B2
B. F = 0
C. F = B
D. F = B/2

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