Question

12.
State the function of following in an electric circuit.
(a) Resistance box
(b) Fixed standard resistance ..
(c) Switch ......
(d) Bulb ......​

Answer 1

Answer:

switch.

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Answer 2

Resistance box:

The main application of the resistance box is to control the specific value of current to flow through the circuit. The box which contains the resistors of different values for estimating and comparing the resistance is known as the resistance box. The accuracy of the resistance box is very high

Fixed standard resistance:

A fixed resistor can be used to limit the overall current flow between two discrete sub circuits. This is especially required when dealing with electronic components. They have maximum current ratings and tend to give fallacious outputs when these thresholds are exceeded.

Switch:

The basic function that any switch is supposed to perform is to receive information from any source connected to it and dispatch that information to the appropriate destination only. This thing differentiates switches from hubs. Hub gets the information and forwards that to every other device in the network.

Bulb:

So its main function is to supply electric power in order for electric items to work. A light bulb is that component of circuit that lights up when electricity flows through it and vice versa. Its main function is to tell whether electricity is being supplied or not. Its function is also to light up dark places.

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