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 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 # 2

Magnetic flux passing through a element whose vector area makes an angle0º with lines of magnetic force is:

Question # 3

Which one of the following relations is correct?

Question # 4

Magnetic flux and flux density are related by

Question # 5

A resistance used in voltmeter is called

Question # 6

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 # 7

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

Question # 8

The current sensitivity of the galvanometer is

Question # 9

The SI unit of flux density is.

Question # 10

Resistance is measured in

Question # 11

Method "lamp and scale arrangement" used to measure the

Question # 12

A shunt resistance parallel to the galvanometer is used to convert it into

Question # 13

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

Question # 14

The force experienced by an electron projected in a magnetic field B with a velocity V is given by

Question # 15

In the expression of force experienced by electron, the direction of both v and B are

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 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
2 For measuring large currents, an ordinary galvanometer cannot be used without proper, then both relates with each other as
A. modification
B. voltage
C. current
D. resistance
3 In a straight current carrying conductor, the direction of magnetic field can be found by
A. right hand rule
B. left hand rule
C. head to tall rule
D. none of these
4 The force acting as one meter length of the conductor placed at right angle to the magnetic field, when one A current is passing through it, defines the
A. magnetic flux
B. magnetic induction
C. magnetic field
D. self inductance
5 The sources of magnetic field are
A. isolated magnetic poles
B. charges at rest
C. charges in motion
D. none of these
6

the current is pass through the straight wire. The magnetic field established around it has its lines of force:
A.

Circular and endless

B.

Oval in shape and endless

C.

Straight

D.

Parabolic
7 A current carrying conductor sets up its own:
A.

Electric field

B.

Nuclear field

C.

Magnetic field

D.

Both (A) and (C)
8 The magnetic field inside a solenoid can be increased by:
A. Increasing n
B. Decreasing I
C. Increasing I
D. By using iron core within solenoid
9 Avo-meter is used of measure the
A. current, voltage
B. voltage, resistance
C. resistance, current
D. current, voltage and resistance
10 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

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