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

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

Question # 2

The SI unit of magnetic flux is

Question # 3

A charged particle moving at right angle to the magnetic field will experience

Question # 4

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 # 5

The force experienced by a single charge carrier moving with velocity 'v' i magnetic field of strength 'B' is given by

Question # 6

If the value of galvanometer constant k = C/BAN is made small, the galvanometer can be made

Question # 7

Resistance is measured in

Question # 8

A long wire wound tightly on a cylindrical core is called:

Question # 9

A beam of electrons is provided by an

Question # 10

The strength of magnetic field around the current conductor is

Question # 11

The force acting on a charge moving in a magnetic field

Question # 12

Ammeter is used to measure

Question # 13

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

Question # 14

The CRO deflects the beam of electrons, when they passes through uniform

Question # 15

Flurescent screen is a screen where visible spot

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 Magnetic flux passing through a element whose vector area makes an angle0º with lines of magnetic force is:
A. BACosѲ

B. Zero
C. BA
D. BA sinѲ
2 Charge to mass ratio (e/m) of an electron is given by the relation
A. e/m = 2V/Br2
B. e/m = 2V/B2r
C. e/m = 2V/B2r2
D. e/m = V/2B2r2
3 The SI unit of flux density is
A. Newton/Amp-meter
B. Newton-m/Ampere
C. Newton-m/Amp2
D. Newton-Amp/meter
4 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
5 NmA-1 is commonly called:
A. Weber
B. Apmere
C. Guass
D. Coulomb
6 The magnetic field in the middle of a solenoid due to current is
A. weak
B. strong and uniform
C. none-uniform
D. zero
7 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
8 Ammeter is used to measure
A. voltage
B. resistance
C. voltage and current
D. current
9 The strength of magnetic field around the current conductor is
A. Smaller near the conductor
B. Greater near the conductor
C. Greater at the large distance from the conductor
D. Constant near and away from the conductor
10 The galvanometer can be made sensitive if the value of the factor C/BAN is
A. constant
B. small
C. large
D. none of these

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