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The value of the electric field strength...

The value of the electric field strength in vacuum if the energy density is same as that due to a magnetic field of induction 1T in vacuum is

A

`3xx10^8NC^-1`

B

`1.5xx10^8NC^-1`

C

`2.0xx10^8NC^-1`

D

`1.0xx10^8NC^-1`

Text Solution

Verified by Experts

The correct Answer is:
A

(a) `1/2epsilon_0E^2=1/(2mu_0)B^2`
`E=sqrt((B^2)/(mu_0epsilon_0)) =BC=3xx10^8 NC^-1`
where c is velocity of light.
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