Advertisements
Advertisements
प्रश्न
What is a primary cell?
What do you understand by primary cells?
Advertisements
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.
संबंधित प्रश्न
Write symbol and state function of following component in an electric circuit :
voltmeter
(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.
Name the physical quantity of which the unit is coulomb
State the relation between electric current; the number of electrons moving in a circuit and time in seconds.
What is the electrical potential at a point in an electric field when 24 J of work is done in moving a charge of 96 C from infinity?
