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In a solenoid, the current flowing through the wire is I and number of turns per unit length is n. This gives magnetic field B inside the solenoid. If number of turn per unit length is increased to 2n, what will be the value of a magnetic field in the solenoid?

(a)

B

(b)

2 B

(c)

B/2

(d)

B/4



Question ID - 50465 | SaraNextGen Top Answer

In a solenoid, the current flowing through the wire is I and number of turns per unit length is n. This gives magnetic field B inside the solenoid. If number of turn per unit length is increased to 2n, what will be the value of a magnetic field in the solenoid?

(a)

B

(b)

2 B

(c)

B/2

(d)

B/4

1 Answer
127 votes
Answer Key / Explanation : (b) -

2 B

127 votes


127