10. STATEMENT-1
A vertical iron rod has a coil of wire wound over it at the bottom end.
An alternating current flows in the coil. The rod goes through a
conducting ring as shown in the figure. The ring can float at a certain
height above the coil.
Because
STATEMENT-2
In the above situation, a current is induced in the ring which interacts with the horizontal component of the magnetic
field to produce an average force in the upward direction.
(A) Statement -1 is True, Statement-2 is True; Statement -2 is a correct explanation for Statement-1.
(B) Statement -1 is True, Statement-2 is True; Statement -2 is NOT a correct explanation for Statement-1.
(C) Statement -1 is True, Statement-2 is False.
(D) Statement -1 is False, Statement-2 is True.
i no the ans is A..but how..I mean as it is ac the feild changes immediately giving al,ost 0 avg feild...sum1 plz xplain in detail!!!!plz plz..
Moderation Team
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