JEE PHYSICS MCQ: ELECTROMAGNETIC WAVES

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Application +4 | -1

The magnetic field between the plate of a capacitor where

r > R

is given by (where

r

is the distance from the axis of plates and

R

is the radius of each plate of capacitor)

View answer and explanation

Correct option: C

\frac{{{\mathrm{\mu }_0}{i_D}}}{{2\mathrm{\pi }r}}

Option B (

16 B_0

) is correct because the magnetic field at the center of the coil increases by a factor of

n^2

when the number of turns is increased to n, while keeping the current constant.

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(E)

(B)

720\;N/C