Advertisements
Advertisements
Questions
What is a primary cell?
What do you understand by primary cells?
Advertisements
Solution
- 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.
RELATED QUESTIONS
Name one D.C. source and one A.C. source.
What is a secondary cell?
How much is the charge on an electron?
Write symbol and state function of following component in an electric circuit :
cell
A charge 0.5 C passes through a cross section of a conductor in 5 s . Find the current .
On increasing the resistance in a circuit, the current in it :
There is a positively charged sphere A and negatively charged sphere B, such that they are brought in electrical contact by a copper wire.
In which direction conventional current flows?
There is a positively charged sphere A and negatively charged sphere B, such that they are brought in electrical contact by a copper wire.
What is the potential of the spheres after electrical contact?
