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

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

Question # 2

A magnetic force on an electron travelling with 108ms-1parallel to a field of strength 1 Wb m-2is

Question # 3

The current is measured in

Question # 4

The sources of magnetic field are

Question # 5

A full-scale deflection is obtained in a galvanometer with a current of few

Question # 6

The SI unit of magnetic flux is.

Question # 7

Method "lamp and scale arrangement" used to measure the

Question # 8

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 # 9

A galvanometer is an instrument used to

Question # 10

A voltmeter is used to measure the

Question # 11

The SI unit of magnetic flux is

Question # 12

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

Question # 13

Lorentz force is defined as

Question # 14

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

Question # 15

The unit of flux density is also given by

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 A beam of electrons is provided by an
A. electron gun
B. Suppray
C. Injection
D. None of these
2

The pointer of a magnetic compass:
A.

Is affected only by permanent magnets

B.

Align itself parallel to the applied magnetic field

C.

Vibrates in the magnetic field of the current

D.

Aligns itself perpendicular to the magnetic field
3 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
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

Amperean path is a:
A.

Closed path

B.

Rectangular path

C.

Circular path

D.

Any of above
6 Which one of the following relations is correct?
A. 1 Wb-m2= Nm-1A-1
B. 1 tesla = 104 gausses
C. 1 Wb-m2= 1 tesla
D. All of the above
7 A meter wire carraying a current of 2A is at right angle to the uniform magnetic field of 0.5 Weber/m2The force on the wire is
A. 5N
B. 4N
C. 1.5N
D. 6N
8 A galvanometer in which the coil comes to rest quickly after the current passed through it, or the current stopped form flowing through it, is called
A. dead beat galvanometer
B. stable galvanometer
C. shunt galvanometer
D. sensitive galvanomter
9 Lorentz force is defined as
A. q(E + V x B)
B. q(E x B + V)
C. q(E x V + B)
D. q(E x B)
10 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

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