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Question (21)
QN0039250

A small square loop of wire of side  is placed inside a large square loop of side . The loop are coplanar
and their centres coincide. The mutual inductance of the system is proportional is  

  • (A)

  • (B)

  • (C)

  • (D)

Correct Answer: B
Explanation:

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Question (22)
QN0039251

Two coaxial solenoids are made by winding thin insulated wire over a pipe of cross-sectional area  and length . If one of the solenoid has 300 turns and the other 400 turns, their mutual inductance is 

  • (A)

  • (B)

  • (C)

  • (D)

Correct Answer: D
Explanation:

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