A straight solenoid has 50 turns per cm in primary and 200 turns in the secondary. The area of cross-section of the solenoid is
. Calculate the mutual inductance.
Text Solution
Verified by ExpertsThe correct answer is:
A
The magnetic field at any point inside the straight solenoid of primary with
turns per unit length carrying a current
is given by the relation

The magnetic flux through the secondary of
turns each of the area
is given as

Mutual inductance,
Substituting the values, we get


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