Hi friends, these are some of the multiple choice questions on electrical and magnetic properties. These are some of the basic questions which are asked in previous competitive papers check out and comment...
1) If the right handed bottle-opener cork screw is assumed to be along the conductor so as to advance in the direction of current flow, the motion of its handle will indicate the direction of magnetic flux produced around the conductor. This is known as
A) Right hand rule
B) Left hand rule
C) Cork screw rule
D) End rule
Ans:C
2) If on looking at any one end of a solenoid; the direction of current flow is found to be clockwise then the end under observation is a south pole. This is known as
A) Right hand rule
B) Left hand rule
C) Cork screw rule
D) End rule
Ans:D
3) If the solenoid is gripped by the right hand with the fingers pointing the direction of current flow, the outstretched thumb will then point the north pole. This is known as
A) Right hand rule
B) Helix rule
C) End rule
D) Cork screw rule
Ans:B
4) The process by which an emf and hence current is generated or induced in a conductor when there is a change in the magnetic flux linking the conductor is called
A) Electromagnetic induction
B) Mutual induction
C) Faraday’s law
D) Electromagnetic interference
Ans:A
5) The emf induced in a coil due to the change of its own flux linked with it is called
A) Mutually induced emf
B) Dynamically induced emf
C) Statically induced emf
D) Self induced emf
Ans:D
1) If the right handed bottle-opener cork screw is assumed to be along the conductor so as to advance in the direction of current flow, the motion of its handle will indicate the direction of magnetic flux produced around the conductor. This is known as
A) Right hand rule
B) Left hand rule
C) Cork screw rule
D) End rule
Ans:C
2) If on looking at any one end of a solenoid; the direction of current flow is found to be clockwise then the end under observation is a south pole. This is known as
A) Right hand rule
B) Left hand rule
C) Cork screw rule
D) End rule
Ans:D
3) If the solenoid is gripped by the right hand with the fingers pointing the direction of current flow, the outstretched thumb will then point the north pole. This is known as
A) Right hand rule
B) Helix rule
C) End rule
D) Cork screw rule
Ans:B
4) The process by which an emf and hence current is generated or induced in a conductor when there is a change in the magnetic flux linking the conductor is called
A) Electromagnetic induction
B) Mutual induction
C) Faraday’s law
D) Electromagnetic interference
Ans:A
5) The emf induced in a coil due to the change of its own flux linked with it is called
A) Mutually induced emf
B) Dynamically induced emf
C) Statically induced emf
D) Self induced emf
Ans:D
6) The emf induced in a coil due to the changing current of another neighboring coil is called
A) Mutually induced emf
B) Self induced emf
C) Statically induced emf
D) Dynamically induced emf
Ans:A
7) When a conductor is stationary and the magnetic field is moving or changing the emf induced is called
A) Statically induced emf
B) Mutually induced emf
C) Self induced emf
D) Dynamically induced emf
Ans:A
8) The magnetic potential in a magnetic circuit can be measured in terms of
A) Mmf
B. Emf
C. Farad
D. Coulomb
Ans:A
9) A substance that attracts pieces iron
A) Conductor
B) Semiconductor
C) Magnet
D) All of the above
Ans:C
10) The phenomenon by which a subtracts pieces of iron
A) Magnetism
B. Electromagnetism
C. Naturalism
D. Materialism
Ans:A
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