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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
What is an electric cell?
n electrons flow through a cross section of a conductor in time t. If charge on an electron is e, then write an expression for the current in the conductor.
The unit of current is :
Explain why does a metal wire when connected to a cell offer resistance to the flow of current.
How many electrons constitute one unit electric charge in SI system?
State and define the SI unit of 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]
Name the scientist who first assigned algebraic signs to charges.
What do you mean by the potential difference? Write its SI unit.
What is a variable resistance? Explain its function using a labeled diagram.
