The forcebetween two short bar magnets with magnetic moments M_(1) and M_(2)whose centres are r metre apartis 8.0 Nthen force between then is reduced to

The forcebetween two short bar magnets with magnetic moments M_(1) and

1.	The forcebetween two short bar magnets with magnetic moments M_(1) and M_(2)whose centres are r metre apartis 8.0 Nthen force between then is reduced to
Answer» 4.0 n 2.0 n 1.0 n 0.5 n Solution :`F=(mu_(0))/(4pi).(6M_(1)M_(2))/(r^(4))` `therefore F=(F)/(16)=8/16=0.5 N`

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The forcebetween two short bar magnets with magnetic moments M_(1) and M_(2)whose centres are r metre apartis 8.0 Nthen force between then is reduced to

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