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प्रश्न
What is a primary cell?
What do you understand by primary cells?
लघु उत्तरीय
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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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Types of Circuits: Simple Circuit
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 2: Electrochemistry - REVIEW EXERCISES [पृष्ठ १८७]
संबंधित प्रश्न
Write symbol and state function of following component in an electric circuit :
rheostat
How is the current flowing in a conductor changed if the resistance of conductor is doubled keeping the potential difference across it the same?
A current 0.2 A flows in a wire of resistance 15Ω. Find the potential difference across the ends of the wire.
State the unit of electric potential and define it.
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 understand by the term electric resistance?
What type of charge is produced on an ebonite rod when it is rubbed with a cat's fur?
What is the net charge on an atom?
Distinguish between an atom and an ion.
What is the SI unit of resistance?
