Question

In transistor radio, 2-3 dry cells are used.why?​

Answer 1

Answer:

(a) A device that is used to break an electric circuit is called electric switch.

Explanation:-

A switch is a simple device that either breaks the circuit or completes it.

physics electricity switch off

Switch is 'OFF'

When switch is in ‘OFF’ position, then the circuit is open i.e. no current flows through the circuit and when switch is in ‘ON’ position, then the circuit is complete i.e. current flows through the circuit.

Physics Electricity Switch ON

Switch is 'ON'

(b) An electric cell has two terminals.

Explanation:-

An electric cell has 2 terminals positive and negative.

Physics Electricity Cell

Electrical Cell

Explanation:

ok

Answer 2

Answer:

Zinc-Carbon cell

Explanation:

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