Question

State the function of following in an electric circuit. (a) Resistance box (b) Fixed standard resistance (c) Switch (d) Bulb
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Answer 1

Explanation:

ans 1)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. The main application of the resistance box is to control the specific value of current to flow through the circuit.

2)An ideal fixed resistor provides a constant resistance under all environments. However, the resistance of the practical resistors varies slightly with increase in temperature. The most frequently used resistance values of the fixed resistors include 100KΩ, 10kΩ, 100Ω, 10Ω.

3)The SWITCH function evaluates one value (called the expression) against a list of values, and returns the result corresponding to the first matching value. If there is no match, an optional default value may be returned.

4)An incandescent light bulb, incandescent lamp or incandescent light globe is an electric light with a wire filament heated until it glows. The filament is enclosed in a glass bulb with a vacuum or inert gas to protect the filament from oxidation.

Answer 2

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Answer

A) 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 resistance box. The accuracy of the resistance box is very high.

B) Fixed standard

• 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 holds are exceeded

C) Switch

• The basic functions 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.

D) Bulb

• So its main function 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. It's main function is to tell wheather electricity is being supplied or not. It's function is also to light up dark places