Question
Question: A coil of N turns and area A is rotated at the rate of n rotations per second in a magnetic field of...
A coil of N turns and area A is rotated at the rate of n rotations per second in a magnetic field of intensity B, the magnitude of the maximum magnetic flux will be
A
NAB
B
Nab
C
NnAB
D
2πnNAB
Answer
NAB
Explanation
Solution
Since φ = NBA cosθ ; For φ to be maximum; cosθ = max = 1 so φmax = NBA.