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प्रश्न
What is an electric cell?
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उत्तर १
An electric cell is a device which converts chemical energy into electrical energy. When connected in a circuit, it acts as a source of D.C. current.
उत्तर २
An electric cell is the source of electric current in which chemical energy changes to electrical energy.
संबंधित प्रश्न
Write symbol and state function of following component in an electric circuit :
rheostat
State three factors on which the resistance of a wire depends. Explain how the resistance depends on the factors stated by you.
Name the physical quantity of which the unit is volt
There is a positively charged sphere A and negatively charged sphere B, such that they are brought in electrical contact by a copper wire.
What is the potential of the spheres after electrical contact?
What do you understand by the term electric current?
Calculate the total number of electrons flowing through a circuit in 20 mins and 40 s, if a current of 40 μA flows through the circuit.
[1 e– = 1.6 × 10-19 C]
Draw a diagram showing two bulbs connected in parallel to a dry cell.
