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

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

Question # 2

CRO deflects the beam of

Question # 3

The gavanometer constant of a moving coil galvanometer is given by

Question # 4

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

Question # 5

41 The force experience, when proton projected in a magnetic field with velocity 'v' is

Question # 6

A beam of electrons is provided by an

Question # 7

The straight current carrying conductor experiences maximum force in a uniform magnetic field when it is placed

Question # 8

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

Question # 9

The SI unit of magnetic flux is

Question # 10

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 # 11

The most suitable material for permanent magnet is

Question # 12

The direction of lines of force depends upon the direction of

Question # 13

When an electron enters in a magnetic field right angle to its motion, the magnitude of its velocity will be

Question # 14

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 # 15

Electron gun consist of

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 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
2 The working of all DC electric meters (galvanometers, ammetersand voltmeters) depends upon
A. Heating effect of current
B. Chemical effect of current
C. Magnetic effect of current
D. Electromagnetic effect of current
3 The current is measured in
A. volts
B. watt
C. ampere
D. ohm
4 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
5 CRO deflects the beam of
A. proton
B. a-particle
C. electron
D. neutron
6 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
7 Ammeter is used to measure
A. voltage
B. resistance
C. voltage and current
D. current
8 Magnetic flux passing through the an element of are A placed perpendicular to a uniform magnetic field Bis:
A. Maximum
B. Minimum
C. Zero
D. Very small
9 Strength of magnetic field is measured in SI units, in:
A. N
B. N/Am
C. Am/N
D. Nm/A
10 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°

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