Question

3.Write the use as well as draw the symbol for the following components :

a) Crossing wires

b) Ammeter

c) Battery

d) Variable resistance


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Answer 1

Explanation:

the electrical symbols of the following components and state its use :

(a) Wire crossing

(b) Rheostat (variable resistance)

(c) Ammeter.

Answer 2

crossing wires

To cross wires without any joints in the circuit.

Ammeter

represents the symbol of ammeter which shows the reading of current in any circuit.

Battery

A battery is a device consisting of one or more electrochemical cells with external connections for powering electrical devices such as flashlights, mobile phones, and electric cars. When a battery is supplying electric power, its positive terminal is the cathode and its negative terminal is the anode.

Variable resistance

A resistor restricts current flow in an electrical circuit without switching the current off. A variable resistor allows more control over current flow by changing the amount of resistance. When resistance increases in a variable resistor, the amount of current that is allowed to flow in a circuit decreases.