If the key in the given arrangement is taken out (the circuit is made open) and magnetic field lines are drawn over the horizontal plane ABCD, the lines are
(a) concentric circles
(b) elliptical in shape
(c) straight lines parallel to each other
(d) concentric circles near the point O but of elliptical shapes as we go away from it [NCERT Exemplar Problems]
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Answered by
1
Answer:
a is the correct answer concentric circle
Answered by
0
Answer:
concentric circles
Explanation:
because it indicates the field lines of a magnetic field around a straight conducting wire.
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