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 sources of magnetic field are

Question # 2

Amperean path is a:

Question # 3

The direction of lines of force depends upon the direction of

Question # 4

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 # 5

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

Question # 6

Avo-meter is used of measure the

Question # 7

The most suitable material for permanent magnet is

Question # 8

Method "lamp and scale arrangement" used to measure the

Question # 9

The vector representation of force experience give the direction of

Question # 10

The strength of magnetic field around the current conductor is

Question # 11

When some compass needles are placed on a card board along a circle with the center at the wire, they will

Question # 12

A field is uniform and much stronger:

Question # 13

If volume of wire is 'AL' and there are 'n' numbers of charge carriers per unit volume, then the total number of charge carriers are

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 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
2 For the conversion of galvanometer into voltmeter, we connect a
A. small resistance in series with galvanometer
B. small resistance in parallel with galvanometer
C. high resistance in parallel with galvanometer
D. high resistance series with galvanometer
3 The field around a moving charge is called
A. magnetic field
B. conservative field
C. non-conservative field
D. none of these
4 A shunt resistance parallel to the galvanometer is used to convert it into
A. avometer
B. millimeter
C. voltmeter
D. none of these
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:
A.

Thumb

B.

Curled fingers

C.

Middle finger

D.

Arm of right hand
6 NmA-1 is commonly called:
A. Weber
B. Apmere
C. Guass
D. Coulomb
7 Galvanometer is a device used for the detection of
A. voltage
B. current
C. temperature
D. pressure
8 How many number of anodes used in electron gun
A. one
B. two
C. three
D. six
9 Which is modified form of galvanometer
A. potentiometer
B. battery
C. voltmeter
D. slide wire bridge
10 When some compass needles are placed on a card board along a circle with the center at the wire, they will
A.

Point the direction of N-S

B.

Set themselves tangential to the circle

C.

Point in the direction of E-W

D.

None of these

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