Q)
(chatquestion)...-Scm
Find out magnetic field at point O ?
T x 10-5 T
(2) t x 104 T
(3) t x 10-1 T
(4) 10-5 T
67. A spirally coiled metallic wire is hanged from one
end to a rigid support. Initially the wire has no
current. Suddenly current is passed through the wire
then it will :-
(1) oscillate
(2) contract
(3) expand
(4) no effect
NEETIIGI 2017...(ques 67 ?)
...
