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A uniform magnetic field existsin region...

A uniform magnetic field existsin region given by `vec(B) = 3 hat(i) + 4 hat(j)+5hat(k)`. A rod of length `5 m` is placed along `y`-axis is moved along `x`- axis with constant speed `1 m//sec`. Then the magnitude of induced `e.m.f` in the rod is :

A

0

B

25 V

C

20 V

D

15 V

Text Solution

Verified by Experts

The correct Answer is:
B
`e=(vecvxxvecB).vecl, e=[vecixx(3veci+4vecj+5veck)].5vecj`
`rArr e=-25V`
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