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प्रश्न
What transformation of energy takes place when current is drawn from a cell?
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उत्तर
Chemical energy changes into electrical energy.
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संबंधित प्रश्न
State the two kinds of cell. Give one example of each.
Write symbol and state function of following component in an electric circuit :
cell
Current in a circuit flows :
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 higher potential before electrical contact on the basis of convention?
State the relation between electric current; the number of electrons moving in a circuit and time in seconds.
Assuming that the charges of an electron is 1.6 × 10-19 coulombs, the number of electrons passing through a section of wire per sec, when the wire carries a current of one ampere is:
Explain the following:
Potential difference
