In an apparatus the electric field was found to oscillate with an amplitude of `18` `V//m`. The magnitude of the oscillating magnrtic field will be

Options

A. `4 xx 10^(-6)T`
B. `6 xx 10^(-8)`
C. `9 xx 10^(-9)` T
D. `11 xx 10^(-11)` T

Answer

B

Explanation

`c= (E)/(B)`
`implies B= (18)/(3 xx 10^(8))= 6 xx 10^(-8)T`