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प्रश्न
State three differences between the primary and secondary cells.
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उत्तर
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Primary Cell |
Secondary cell |
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1. Chemical reaction is irreversible. 2. Only chemical energy is converted into electrical energy when current is drawn from it. 3. It cannot be recharged and its internal resistance is high. |
1. Chemical reaction is reversible. 2. It converts electrical energy into chemical energy when current is passed in it (i.e., during charging), while converts chemical energy into electrical energy when current is drawn from it (i.e., during discharging). 3. It can be recharged and its internal resistance is low. |
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संबंधित प्रश्न
Write symbol and state function of following component in an electric circuit :
cell
(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.
State three factors on which the resistance of a wire depends. Explain how the resistance depends on the factors stated by you.
What do you mean by the potential difference? Write its SI unit.
What is the SI unit of resistance?
