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

F = I(L x B) is a

Question # 2

The SI unit of magnetic flux is

Question # 3

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

Question # 4

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

Question # 5

When charged particle is projected perpendicular to a uniform magnetic field its trajectory is

Question # 6

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 # 7

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

Question # 8

The SI unit of magnetic flux is.

Question # 9

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

Question # 10

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 # 11

How many number of anodes used in electron gun

Question # 12

It is customary represent a current flowing towards the reader by a symbol

Question # 13

The magnetic field outside the solenoid due to current is

Question # 14

The force acting on a charge moving in a magnetic field

Question # 15

The SI unit of magnetic permeability is

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 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
2 Resistance is measured in
A. volts
B. ampere
C. ohm
D. watt
3 The SI unit of flux density is.
A. Tesla
B. Weber
C. Gaun
D. Weber/meter
4 NmA-1 is commonly called:
A. Weber
B. Apmere
C. Guass
D. Coulomb
5 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
A. magnetic flux
B. magnetic induction
C. magnetic field
D. self inductance
6 In the formula B= µ̻ nl, the symbol n denotes:
A.

Total number of turns of solenoid

B.

Number of turns per unit length

C.

Number of turns per unit volume

D.

Numbers of turns per unit area
7 Gauss(G) is smaller unit of magnetic induction which is related to tesla(T) as
A. IT = 10-4 G
B. IT = 105G
C. IT = 103G
D. IT = 104G
8 Tesla is the unit of
A. Magnetic induction or flux density
B. Magnetic flux
C. Self inductance
D. None of these
9 A magnetic force on an electron travelling with 108ms-1parallel to a field of strength 1 Wb m-2is
A. Zero
B. 105 m
C. 10-10N
D. 108N
10 A galvanometer in which the coil comes to rest quickly after the current passed through it, or the current stopped form flowing through it, is called
A. dead beat galvanometer
B. stable galvanometer
C. shunt galvanometer
D. sensitive galvanomter

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