Question

12. A physicist works in a laboratory where the
magnetic field is 2 T. She wears a necklace enclosing
area 0.01 m² in such a way that the plane of the
necklace is normal to the field and is having a
resistance R=0.0122. Because of power failure, the
field decays to 1 T in time 10-3 sec. Then what is the
total heat produced in her necklace ?
(a) 10 J
(b) 20 J
(C) 30 )
(d) 40 J
50 om is kent​

Answer 1

Answer:

12. A physicist works in a laboratory where the

magnetic field is 2 T. She wears a necklace enclosing

area 0.01 m² in such a way that the plane of the

necklace is normal to the field and is having a

resistance R=0.0122. Because of power failure, the

field decays to 1 T in time 10-3 sec. Then what is the

total heat produced in her necklace ?

(a) 10 J

(b) 20 J

(C) 30 )

(d) 40 J

50 om is kent

(C) 30 )

Explanation:

$hii$

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