Question

What do the symbols given below represent in an electric circuit? Write one function of each. 

Hint:

A battery provides the necessary potential difference to drive current, while resistors help control and limit the flow of current in the circuit.

Answer 1

(i) Battery (or Cell) Symbol:
The symbol \( + \, - \) signifies a basic electric cell or battery within a circuit.
- ₂Purpose:₂ A battery's role is to furnish electrical energy to the circuit, supplying the voltage (potential difference) that compels current flow.
(ii) Resistor Symbol:
The symbol \( \, \bigtriangleup \, \) denotes a resistor in an electric circuit.
- ₂Purpose:₂ A resistor's purpose is to constrict or manage the electric current's movement within the circuit. It converts electrical energy into heat, aiding in current regulation throughout different circuit sections.