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

Which is modified form of galvanometer

Question # 2

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

Question # 3

Gauss(G) is smaller unit of magnetic induction which is related to tesla(T) as

Question # 4

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

Question # 5

Galvanometer is a device used for the detection of

Question # 6

The SI unit of magnetic flux is.

Question # 7

If the number of turns of a solenoid (carrying a steady current I) is doubled without changing the length of a solenoid, then magnetic field:

Question # 8

For the conversion of galvanometer into voltmeter, we connect a

Question # 9

Method "lamp and scale arrangement" used to measure the

Question # 10

The torque per unit twist of coil is called

Question # 11

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 # 12

A galvanometer is an instrument used to

Question # 13

The vector representation of force experience give the direction of

Question # 14

The field around a moving charge is called

Question # 15

Flurescent screen is a screen where visible spot

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 A relationship between Gauses of magnetic induction and Tesla(T) is given by
A. G 10-3T
B. G = 10-2T
C. G = 10-4T
D. G = 10-1T
2 The direction of lines of force depends upon the direction of
A. voltage
B. current
C. charges
D. none of these
3 The straight current carrying conductor experiences maximum force in a uniform magnetic field when it is placed
A. parallel to the field
B. Perpendicular to the field
C. At an angle of 45 to the field
D. None of the above
4 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
5 If the number of turns of a solenoid (carrying a steady current I) is doubled without changing the length of a solenoid, then magnetic field:
A. Becomes Half
B. Becomes double
C. Is not affected
D. Becomes one fourth
6 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
7 A resistance used in galvanometer to make it voltmeter is called
A. shunt resistance
B. high resistance
C. zero resistance
D. none of these
8 A solenoid is a coil of wire which is:
A.

Short, loosely wound, cylindrical

B.

Long, tightly wound, spherical

C.

Long, loosely wound, cylindrical

D.

Long, tightly wound, cylindrical
9 In order to make a voltmeter, high resistance is connected with galvanometer, in
A. perpendicular
B. may be paralled or pendicular
C. series
D. none of these
10 The total number of lines of magnetic induction pasing through a surface perpendicular to the magnetic field is called
A. magnetic flux
B. magnetic flux density
C. magnetic induction
D. magnetic field intensity

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