ECAT Pre Engineering Physics Chapter 14 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 14 Electromagnetism

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 14 Electromagnetism

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Physics ECAT Pre Engineering Chapter 14 Electromagnetism

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Question # 1

Magnetic lines of force:

Question # 2

Charge to mass ratio (e/m) of an electron is given by the relation

Question # 3

The force acting on a charge moving in a magnetic field

Question # 4

To convert galvanometer into ammeter we connect

Question # 5

CRO deflects the beam of

Question # 6

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

Question # 7

Magnetic induction is also called as:

Question # 8

A beam of electrons is provided by an

Question # 9

Which is modified form of galvanometer

Question # 10

The SI unit of magnetic induction is

Question # 11

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

Question # 12

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 # 13

The current sensitivity of the galvanometer is

Question # 14

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

Question # 15

Avo-meter is used of measure the

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 When the waveform of one voltage is increasing and that of second is decreasing and vice versa, then phase difference between these voltage is
A. 90°
B. 75°
C. 0°
D. 180°
2 NmA-1 is commonly called:
A. Weber
B. Apmere
C. Guass
D. Coulomb
3 Which is modified form of galvanometer
A. potentiometer
B. battery
C. voltmeter
D. slide wire bridge
4 The force experienced by charged particle is maximum, if it moves
A. parallel to magnetic field
B. perpendicular to magnetic field
C. opposite to the magnetic field
D. none of these
5 A galvanometer is an instrument used to
A. measure voltage across a circuit
B. detect current in a circuit
C. measure current flowing through a circuit
D. none of these
6 Ammeter is used to measure
A. voltage
B. resistance
C. voltage and current
D. current
7 The unit of magnetic flux is
A. Weber-m2
B. Weber-m3
C. Henry
D. Weber
8 Magnetic flux and flux density are related by
A. Flux density = flux x area
B. Flux density = flux / area
C. Flux density = flux - area
D. None of these
9

Amperean path is a:
A.

Closed path

B.

Rectangular path

C.

Circular path

D.

Any of above
10 A current carrying conductor sets up its own:
A.

Electric field

B.

Nuclear field

C.

Magnetic field

D.

Both (A) and (C)

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