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प्रश्न
What is a primary cell?
What do you understand by primary cells?
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उत्तर
- Primary cells are those cells in which the cell reaction occurs only in one direction and the reaction cannot be reversed by the external energy source.
- As a result, the reaction in primary cells only happens once, and the battery eventually dies and is no longer usable.
- It is impossible to recharge such cells.
- Daniell cells, dry cells, mercury cells, and others are examples of significant primary cells.
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संबंधित प्रश्न
A cell of potential difference 12 V is connected to a bulb. The resistance of filament of bulb when it glows is 24Ω. Find the current drawn from the cell.
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?
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?
State two characteristics of resistance in the parallel circuit.
What do you mean by an electric current?
Write SI unit of
Electric current,
