If I attached one end of a LED bulb with a cell and other with a screwdriver. If screwdriver is made of iron then what will happen if it is attached to the other terminal of cell?
a) Bulb will glow b) Bulb will not glow c) Can't say anything d) Bulb will blink.
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Answer:
d) bulb will blink
Explanation:
atually i am not sure but i think it is right
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