A uniform magnetic field of 0.3 T is est...

A uniform magnetic field of 0.3 T is established along the positive Z-direction. A rectangular loop in XY- plane of sides 10 cm and 5 cm carries a current of I = 12A as shown. The torque on the loop is

`+ 1.8 xx 10^(-2)hat(i)N cdot m`

`-1.8 xx 10^(-2)hat(j)Ncdotm`

zero

`-1.8 xx 10^(-2) hat(i) N cdot m `

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