7/29/2019 iseet jee enjoy doing

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1.vertical component of earth's magnetic field is zero at:___________

Ans)magnetic equator

2.The orientation of a magnetic dipole in uniform magnetic field so that

its potential energy is maximum is and minimum at .Then A-B

is:

a)180* B)0* c) 240* d)360* ANS)A

SOL) potential energy = -MBCOS@

=Maximum when cos@ =180=A

=Minimum when cos@=0=B A-

B=180

3.