More Classes
5th Class
6th Class
7th Class
8th Class
9th Class
10th Class
11th Class
12th Class
NAT I
NAT II
CSS
IQ
General Knowledge
MDCAT
ECAT
GAT General
GAT Subject
Other Links
Go to Home
Online Tests
ECAT Physics Chapter 14 Electromagnetism Online Test MCQs With Answers
Question # 1
Magnetic induction is also called as:
Choose an answer
Ampere’s law
Faraday’s law
Lenz’s law
Newton’s law
Coulomb’s law
Previous
Skip
Next
Question # 2
The CRO deflects the beam of electrons, when they passes through uniform
Choose an answer
electric field
gravitational field
magnetic flax
magnetic field
Previous
Skip
Next
Question # 3
A galvanometer is an instrument used to
Choose an answer
measure voltage across a circuit
detect current in a circuit
measure current flowing through a circuit
none of these
Previous
Skip
Next
Question # 4
The torque per unit twist of coil is called
Choose an answer
proportionality constant
gravitational constant
boltzman constant
coupling constant
Previous
Skip
Next
Question # 5
The unit of magnetic flux is
Choose an answer
Weber-m
2
Weber-m
3
Henry
Weber
Previous
Skip
Next
Question # 6
A magnetic force on an electron travelling with 10
8
ms
-1
parallel to a field of strength 1 Wb m
-2
is
Choose an answer
Zero
10
5
m
10
-10
N
10
8
N
Previous
Skip
Next
Question # 7
The SI unit of magnetic flux is.
Choose an answer
weber
Nm
-1
A
-1
tesla
gauss
Previous
Skip
Next
Question # 8
The total number of lines of magnetic induction pasing through a surface perpendicular to the magnetic field is called
Choose an answer
magnetic flux
magnetic flux density
magnetic induction
magnetic field intensity
Previous
Skip
Next
Question # 9
For measuring large currents, an ordinary galvanometer cannot be used without proper, then both relates with each other as
Choose an answer
modification
voltage
current
resistance
Previous
Skip
Next
Question # 10
If the value of galvanometer constant k = C/BAN is made small, the galvanometer can be made
Choose an answer
Sensitive
Accurate
Stable
None of these
Previous
Skip
Next
Question # 11
The strength of magnetic field around the current conductor is
Choose an answer
Smaller near the conductor
Greater near the conductor
Greater at the large distance from the conductor
Constant near and away from the conductor
Previous
Skip
Next
Question # 12
If current through conductor is 1 A and length of conductor is 1m placed at right angle to the magnetic field, then the strength of magnetic field is
Choose an answer
F = B
2
F = 0
F = B
F = B/2
Previous
Skip
Next
Back