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 unit of magnetic flux is

Question # 2

A resistance used in voltmeter is called

Question # 3

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 # 4

The SI unit of magnetic flux is.

Question # 5

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

Question # 6

For the conversion of galvanometer into voltmeter, we connect a

Question # 7

magnetic field is a:

Question # 8

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

Question # 9

The permeability of free space is measured in:

Question # 10

Galvanometer is a device used for the detection of

Question # 11

When the waveform of one voltage is increasing and that of second is decreasing and vice versa, then phase difference between these voltage is

Question # 12

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

Question # 13

NmA-1 is commonly called:

Question # 14

In a straight current carrying conductor, the direction of magnetic field can be found by

Question # 15

(CRO) Cathode ray oscilloscope is a device used for high speed

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 F = I(L x B) is a
A. vector
B. scalar
C. unit vector
D. none of these
2 Ammeter is used to measure
A. voltage
B. resistance
C. voltage and current
D. current
3 In the expression of force experienced by electron, the direction of both v and B are
A. parallel
B. zero
C. perpendicular
D. none of them
4 Tesla is the unit of
A. Magnetic induction or flux density
B. Magnetic flux
C. Self inductance
D. None of these
5 To convert galvanometer into ammeter we connect
A. small resistance in parallel with galvanometer
B. small resistance in series with galvanometer
C. high resistance in series with galvanometer
D. high resistance in parallel with galvanometer
6 The voltage increases linearly with
A. time
B. velocity
C. acceleration
D. torque
7 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
A. n/AL
B. Al/n
C. nAL
D. nA/L
8 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
9 magnetic field is a:
A.

Vector quantity

B.

Scalar quantity

C.

Scalar as well as scalar quantity

D.

Any of (A) or (B)
10 A resistance used in galvanometer to make it voltmeter is called
A. shunt resistance
B. high resistance
C. zero resistance
D. none of these

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