The magnetic field B at a point on one end of a solenoid having n turns per metre length and carrying a current of i ampere is given by

Question

The magnetic field B at a point on one end of a solenoid having n turns per metre length and carrying a current of i ampere is given by (A) (μ0 r i/e) (B) (1/2) μ0 n i (C) 4 π μ0 n i (D) n i

Tardigrade Admin · Accepted Answer

Magnetic field at a point on one end of a solenoid B =(1/2) μ0 n i

Q. The magnetic field $B$ at a point on one end of a solenoid having $n$ turns per metre length and carrying a current of $i$ ampere is given by

$\frac{μ _{0} r i}{e}$

$\frac{1}{2} μ_{0} ni$

$4 π μ_{0} ni$

$ni$

Magnetic field at a point on one end of a solenoid $B$
$= \frac{1}{2} μ_{0} ni$

Q. The magnetic field B at a point on one end of a solenoid having n turns per metre length and carrying a current of i ampere is given by

eμ0​ri​

21​μ0​ni

4πμ0​ni

ni