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

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

Question # 2

Lorentz force is defined as

Question # 3

The vector representation of force experience give the direction of

Question # 4

The SI unit of magnetic induction is

Question # 5

The SI unit of magnetic flux is

Question # 6

The strength of magnetic field around the current conductor is

Question # 7

The magnetic field outside the solenoid due to current is

Question # 8

Amperean path is a:

Question # 9

Tesla is the unit of

Question # 10

When current passes through a solenoid coil, it behaves like a

Question # 11

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 # 12

F = I(L x B) is a

Question # 13

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

Question # 14

How many number of anodes used in electron gun

Question # 15

Current is measured in

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
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
A. ammeter
B. voltmeter
C. galvanometer
D. avo-meter
2 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
3 A voltmeter is used to measure the
A. potential difference
B. current
C. temperature
D. resistance
4 NmA-1 is commonly called:
A. Weber
B. Apmere
C. Guass
D. Coulomb
5 Avo-meter is used of measure the
A. current, voltage
B. voltage, resistance
C. resistance, current
D. current, voltage and resistance
6 When current passes through a solenoid coil, it behaves like a
A. loop
B. circle
C. bar magnet
D. none of these
7 Ammeter is used to measure
A. voltage
B. resistance
C. voltage and current
D. current
8 A charged particle moving at right angle to the magnetic field will experience
A. minimum force
B. maximum force
C. zero
D. moderate force
9 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
10 The magnetic field outside the solenoid due to current is
A. strong
B. zero
C. weak
D. uniform

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