Electromagnetic Induction - Result Question 35

35. If the number of turns per unit length of a coil of solenoid is doubled, the self-inductance of the solenoid will

(a) remain unchanged

(b) be halved

(c) be doubled

(d) become four times

Show Answer

Answer:

Correct Answer: 35. (d)

Solution:

  1. (d) Self inductance of a solenoid =μn2A

So, self induction n2

So, inductance becomes 4 times when n is doubled.



NCERT Chapter Video Solution

Dual Pane