Question

Plug key
Plug key
W B
A
B
A
S
Magnetic needle
Magnetic needle
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1
i) Which effect of electric current shows in the diagram
ii) If the number of electric cell increases what will happen with the
deflection of magnetic needle.
iii) If we increase the distance of magnetic needle from the conductor
what will happen about magnetic intensity.
iv) Write the conclusion of above experiment in your own word.
v) Write two applications which are based on above effect?
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Answer 1

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