Question

The infinity resistance plug in a post-office box has
(a) an air gap only
(b) a resistance coil of infinite resistance
(c) largest resistance available in box
(d) resistance of the coil 5000 ????

Answer 1

Answer:

b

Explanation:

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Answer 2

Answer:

The infinity resistance plug in a post-office box has an air gap only. Hence option (a) is the correct option.

Explanation:

We should be aware that a plug is a resistance box, and that when it is pulled out, the circuit is opened and becomes infinitely resistive.

An air gap is said to be introduced into the circuit when the infinity plug is removed. Since air is a poor conductor of current, no current flows across the circuit, indicating that infinite resistance has been added.

The name "post-office box" refers to the box's shape, which is similar to the style of a post-office box. It is used to measure the resistance of telegraph and electric cables. The resistance of transmission cables could previously be measured in post offices.

To learn more about resistance, click on the below link:

https://brainly.in/question/25330907

https://brainly.in/question/37356923

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