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A very long straight wire carries a curr...

A very long straight wire carries a current I. At the instant when a charge `+Q` at point `P` has velocity `vecV`, as shown, the force on the charge is

A

opposite to `OX`

B

along `OX`

C

opposite `OY`

D

along `OY`

Text Solution

Verified by Experts

The correct Answer is:
D
`vec(F)_(m) = q(v hat(i) xx B hat(k)) = q v B hat(j)`
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