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When a current loop is placed in a unifo...

When a current loop is placed in a uniform magnetic field
i) `barF_(R)=0` and `bartau=0` ii) `barF_(R)=0` but `bartaune0`
iii) `barF_(R)ne0` but `bartau=0` iv) `barF_(R)ne0` and `bartaune0`

A

Only i & ii are true

B

Only ii & iii are true

C

Only iii & iv are true

D

Only i & iv are true

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