A solenoid wound over a rectangular frame. If all the linear dimension – InterviewSolution

1.	A solenoid wound over a rectangular frame. If all the linear dimensions of the frame are increased by factor of 3 and number of turns per unit length remains the same , the self inductance increased by factor of- 1) 3 2) 9 3) 27 4) 63
Answer» A solenoid wound over a rectangular frame. If all the linear dimensions of the frame are increased by factor of 3 and number of turns per unit length remains the same , the self inductance increased by factor of- 1) 3 2) 9 3) 27 4) 63

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