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A rectangular loop of sides 6 cm and 2 c...

A rectangular loop of sides 6 cm and 2 cm with a small cut is moving out of a region of uniform magnetic field of magnitude 0.4 T direction normal to the loop. The voltage developed across the cut if velocity of loop is `2cm^(-1)` in a direction normal to the longer side is

A

`3.8xx10^(-4)V`

B

`4.8xx10^(-4)V`

C

`2.2xx10^(-2)V`

D

`3.2xx10^(-2)V`

Text Solution

Verified by Experts

The correct Answer is:
B
Here, `l=6cm, 6xx10^(-2)m`
`B=0.4`
`v=2cm s^(-1)`
`=2xx10^(-2)m s^(-1)`
Voltage developed is `epsi=Blv=0.4xx6xx10^(-2)xx2xx10^(-2)`
`=4.8xx10^(-4)V`
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