# PHYSICS FOR AIEEE, IIT JEE--e.m.induction Online Test

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Whether I increases or decreases, B will not experience any force
If I decrease, A will repel B
If I increases, A will attract B
If I increases, A will repel B
An infinitely long cylinder is kept parallel to an uniform magnetic field B directed along positive z axis. The direction of induced current as seen from the z axis is ____.
Clockwise of the +ve z axis
Anticlockwise of the +ve z axis
Zero
Along the magnetic field
Two different loops are concentric and lie in the same plane. The current in the outer loop is clockwise and increasing with time. The induced current in the inner loop then, is ____.
Clockwise
Zero
Counter clockwise
In a direction that depends on the ratio of the loop radii
The north pole of a long horizontal bar magnet is being brought closer to a vertical conducting plane along the perpendicular direction. The direction of the induced current in the conducting plane is ____.
Horizontal
Vertical
Clockwise
According to Lenz’s law
The north pole of a bar magnet is moved swiftly downward towards a closed coil and then second time it is raised upwards slowly. The magnitude and direction of the induced currents in the two cases is of ____.
First case Second case Low value clockwise Higher value anticlockwise
First case Second case Low value clockwise Equal value anticlockwise
First case Second case Higher value clockwise Low value clockwise
First case Second case Higher value anticlockwise Low value clockwise
The north pole of a magnet is brought near a metallic ring. The direction of the induced current in the ring is ____.
Clockwise
Anticlockwise
Towards north
Towards south
If a copper ring is moved quickly towards south pole of a powerful stationary bar magnet, then ____.
Current flows through the copper ring
Voltage in the magnet increase
Current flows in the magnet
Copper ring will get magnetized
The current carrying wire and the rod AB are in the same plane. The rod moves parallel to the wire with a velocity v. Which one of the following statements is true about induced emf in the rod ____. 
End A is at lower potential with respect to B
A and B is at the same potential
There is no induced e.m.f. in the rod
Potential at A is higher than that at B
An electric potential difference is induced between the ends of the conductor shown in the diagram, when the conductor moves in the direction ____. 
P
Q
L
M
A moving conductor coil in a magnetic field produces an induced e.m.f. This is in accordance with ____.
Amperes law
Coulomb law
Lenz’s law
Description:

Conceptual questions on em induction will be of interest for students preparing for aieee, iit jee, aipmt etc.

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Discussion

Please give me correct explanation of question no 4 in AIEEE, IIT JEE -- E.M. INDUCTION exam.

4458 days 9 hours 39 minutes ago

very good

4469 days 2 hours 16 minutes ago

Hi, This is venkata sreekanth, Please give me correct explanation of question no 4 in AIEEE, IIT JEE -- E.M. INDUCTION exam.

4495 days 31 minutes ago

Kajal Sengupta
Physics 9th to 12 th grade,CIE, Edexcel, AP, IB , CBSE, ICSE
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