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A cell is used to :
The unit of current is :
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There is a positively charged sphere A and negatively charged sphere B, such that they are brought in electrical contact by a copper wire.
Which sphere is at lower potential before electrical contact on the basis of convention?
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In which direction electronic current flows?
What is the electrical potential at a point in an electric field when 24 J of work is done in moving a charge of 96 C from infinity?
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Write SI unit of
Electric current,
Write SI unit of
Resistance.
