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

Which one of the following relations is correct?

Question # 2

Resistance is measured in

Question # 3

A beam of electrons is provided by an

Question # 4

Total number of turns on 0.15 m length solenoid is 300. the value of n is:

Question # 5

Magnetic flux passing through the an element of are A placed perpendicular to a uniform magnetic field Bis:

Question # 6

The working of all DC electric meters (galvanometers, ammetersand voltmeters) depends upon

Question # 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

Question # 8

The unit of magnetic flux is

Question # 9

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

Question # 10

For measuring large currents, an ordinary galvanometer cannot be used without proper, then both relates with each other as

Question # 11

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 # 12

When the waveform of one voltage is increasing and that of second is decreasing and vice versa, then phase difference between these voltage is

Question # 13

CRO deflects the beam of

Question # 14

The force experienced by an electron projected in a magnetic field B with a velocity V is given by

Question # 15

Method "lamp and scale arrangement" used to measure the

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The magnetic field outside the solenoid due to current is
A. strong
B. zero
C. weak
D. uniform
2 A resistance used in galvanometer to make it voltmeter is called
A. shunt resistance
B. high resistance
C. zero resistance
D. none of these
3 Tesla is the unit of
A. Magnetic induction or flux density
B. Magnetic flux
C. Self inductance
D. None of these
4 41 The force experience, when proton projected in a magnetic field with velocity 'v' is
A. +e(v x B)
B. -C(V x B)
C. +e2(v x B)
D. -e(v2x B)
5 When the charged particle is projected at right angles to the field, then experienced by it will be:
A. Maximum
B. Zero
C. qvB
D. Both (A) and (B)
6 'K' is the proportionality constant of force experienced by conductor. What is the value of 'K' in SI units?
A. 0
B. 1
C. 0.5
D. -1
7 The force acting on a charge moving in a magnetic field
A. is perpendicular to the both magnetic field and direction of motion
B. is proportional to the magnetic of charges
C. vanishes when the motion is directly opposite to the direction of field
D. all of the above
8

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

Circular and endless

B.

Oval in shape and endless

C.

Straight

D.

Parabolic
9 The SI unit of flux density is
A. Newton/Amp-meter
B. Newton-m/Ampere
C. Newton-m/Amp2
D. Newton-Amp/meter
10 At a given instant, a photon moves in +x direction in a region where there magnetic field in -z direction. The magnetic force on the proton will be the:
A. -y direction
B. +y direction
C. +z direction
D. -z direction

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