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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
(a) Complete the circuit given in Fig. by inserting between the terminals A and C. an ammeter.
(b) In the diagram, mark the polarity at the terminals of ammeter and indicate clearly the direction of flow of current in the circuit when the circuit is complete.
(c) Name and state the purpose of Rh in the circuit.
How is the current flowing in a conductor changed if the resistance of conductor is doubled keeping the potential difference across it the same?
Name the physical quantity of which the unit is volt
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]
What do you mean by the potential difference? Write its SI unit.
