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

Question # 2

A charged particle moving at right angle to the magnetic field will experience

Question # 3

The current in microamperes required to produce one millimeter deflection on a scale placed one meter away from the mirror of the galvanometer, defined the sensitivity of

Question # 4

The voltage increases linearly with

Question # 5

The magnetic field inside a solenoid can be increased by:

Question # 6

A resistance used in voltmeter is called

Question # 7

The working of galvanometer depends upon torque exerted on a current carrying coil in

Question # 8

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

Question # 9

When a suitable small resistance is put in parallel with the galvanometer coil, it is converted into

Question # 10

A long wire wound tightly on a cylindrical core is called:

Question # 11

Avo-meter is used of measure the

Question # 12

Galvanometer is a device used for the detection of

Question # 13

The unit of magnetic flux is

Question # 14

if the field is directed along the normal to the area, then flux is:

Question # 15

NmA-1 is commonly called:

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 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
2 How many number of anodes used in electron gun
A. one
B. two
C. three
D. six
3 A charged particle moving at right angle to the magnetic field will experience
A. minimum force
B. maximum force
C. zero
D. moderate force
4 The force experienced by a single charge carrier moving with velocity 'v' i magnetic field of strength 'B' is given by
A. F =q(v/B)
B. F=q2(v x B)
C. F=q(v x B)
D. F= vx B
5

The pointer of a magnetic compass:
A.

Is affected only by permanent magnets

B.

Align itself parallel to the applied magnetic field

C.

Vibrates in the magnetic field of the current

D.

Aligns itself perpendicular to the magnetic field
6 The SI unit of magnetic flux is.
A. weber
B. Nm-1A-1
C. tesla
D. gauss
7 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
8 The unit of magnetic flux is
A. Weber-m2
B. Weber-m3
C. Henry
D. Weber
9 Which is modified form of galvanometer
A. potentiometer
B. battery
C. voltmeter
D. slide wire bridge
10 Flurescent screen is a screen where visible spot
A. vanishes
B. is made
C. becomes small and large
D. none of these

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