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A conducitng rod AB of length l = 1 m mo...

A conducitng rod `AB` of length `l = 1 m` moving at a velcity `v = 4 m//s` making an angle `30^(@)` with its length. A uniform magnetic field `B = 2T` exists in a direction perpendicular to the plane of motion. Then :

A

`v_A-v_B =8v`

B

`v_A -v_B =4v`

C

`v_B-v_A=8v`

D

`v_B-v_A =4v`

Text Solution

Verified by Experts

The correct Answer is:
B
`e= B (v sin 30^@ ) l = 4 ` volt
fleming right hand `I_("ind")` B to A
` implies V_A -V_B =4 ` volt
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