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

Gauss(G) is smaller unit of magnetic induction which is related to tesla(T) as

Question # 2

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

Question # 3

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

Question # 4

The magnetic field in the middle of a solenoid due to current is

Question # 5

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

Question # 6

In the formula B= µ̻ nl, the symbol n denotes:

Question # 7

The SI unit of magnetic flux is

Question # 8

How many number of anodes used in electron gun

Question # 9

The SI unit of magnetic permeability is

Question # 10

The torque per unit twist of coil is called

Question # 11

The sources of magnetic field are

Question # 12

In the expression of force experienced by electron, the direction of both v and B are

Question # 13

Current is measured in

Question # 14

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 # 15

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The vector representation of force experience give the direction of
A. magnetic field
B. current
C. length of conductor
D. force
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 A full-scale deflection is obtained in a galvanometer with a current of few
A. ampere
B. volts
C. milliampere
D. ohm
4 Avo-meter is used of measure the
A. current, voltage
B. voltage, resistance
C. resistance, current
D. current, voltage and resistance
5 Weber is a unit of
A. magnetic flux
B. magnetic filed intensity
C. magnetic induction
D. magnetic flux density
6 CRO deflects the beam of
A. proton
B. a-particle
C. electron
D. neutron
7 NmA-1 is commonly called:
A. Weber
B. Apmere
C. Guass
D. Coulomb
8 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
9 Method "lamp and scale arrangement" used to measure the
A. angle of deflection
B. restoring torque
C. magnetic field strength
D. current
10 The straight current carrying conductor experiences maximum force in a uniform magnetic field when it is placed
A. parallel to the field
B. Perpendicular to the field
C. At an angle of 45 to the field
D. None of the above

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