ECAT Pre General Science Physics Chapter 14 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 14 Electromagnetism

Try The MCQ's Test For ECAT Pre General Science Physics Chapter 14 Electromagnetism

  • Total Questions30

  • Time Allowed30

Start Test Download PDF

ECAT Pre General Science Physics Chapter 14 Electromagnetism

00:00
Question # 1

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

Question # 2

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 # 3

To convert galvanometer into ammeter we connect

Question # 4

The direction of lines of force depends upon the direction of

Question # 5

Hold the solenoid in the right hand with fingers curling in the direction of current. The direction of the field will be given by:

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

A solenoid is a coil of wire which is:

Question # 8

A galvanometer is an instrument used to

Question # 9

A voltmeter is used to measure the

Question # 10

A magnetic force on an electron travelling with 108ms-1parallel to a field of strength 1 Wb m-2is

Question # 11

Magnetic induction is also called as:

Question # 12

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

Question # 13

A relationship between Gauses of magnetic induction and Tesla(T) is given by

Question # 14

Resistance is measured in

Question # 15

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

Question # 16

Tesla is the unit of

Question # 17

NmA-1 is commonly called:

Question # 18

(CRO) Cathode ray oscilloscope is a device used for high speed

Question # 19

The SI unit of magnetic permeability is

Question # 20

Charge to mass ratio (e/m) of an electron is given by the relation

Question # 21

Magnetic flux passing through a element whose vector area makes an angle0º with lines of magnetic force is:

Question # 22

The field around a moving charge is called

Question # 23

The magnetic field inside a solenoid can be increased by:

Question # 24

The gavanometer constant of a moving coil galvanometer is given by

Question # 25

The permeability of free space is measured in:

Question # 26

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

Question # 27

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

Question # 28

The unit of magnetic flux is

Question # 29

The force experienced by charged particle is maximum, if it moves

Question # 30

For the conversion of galvanometer into voltmeter, we connect a

Submit

Prepare Complete Set Wise ECAT Pre General Science Physics Chapter 14 Electromagnetism MCQs Online With Answers


Topic Test

00:00
Submit

Top Scorers Of ECAT Pre General Science Physics Chapter 14 Electromagnetism MCQ`s Test

  • M
    M Abduullah 17 - Feb - 2021 13 Min 51 Sec 65/120
  • W
    Waleed Ahmed 25 - Feb - 2023 18 Min 24 Sec 55/120
  • I
    Inzmam Rajper 16 - Jun - 2022 10 Min 50 Sec 50/120
  • H
    Hiba Akhtar 06 - Mar - 2023 06 Min 56 Sec 45/120

ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The e/m of an electron moving in a circular path in a magnetic field is equal to
A. V/Br
B. V/B2r2
C. V2/Br2
D. V2/Br
2 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
3 When an electron enters in a magnetic field right angle to its motion, the magnitude of its velocity will be
A. changed
B. zero
C. unchanged
D. none of these
4 NmA-1 is commonly called:
A. Weber
B. Apmere
C. Guass
D. Coulomb
5 The force experienced by an electron projected in a magnetic field B with a velocity V is given by
A. F=e(V x B)
B. F= -e(V x B)
C. F= e(B x V)
D. Both a and c
6 Avo-meter is used of measure the
A. current, voltage
B. voltage, resistance
C. resistance, current
D. current, voltage and resistance
7 For measuring large currents, an ordinary galvanometer cannot be used without proper, then both relates with each other as
A. modification
B. voltage
C. current
D. resistance
8 The SI unit of magnetic flux is.
A. weber
B. Nm-1A-1
C. tesla
D. gauss
9 When some compass needles are placed on a card board along a circle with the center at the wire, they will
A.

Point the direction of N-S

B.

Set themselves tangential to the circle

C.

Point in the direction of E-W

D.

None of these
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

Test Questions

Is this page helpful?