A circular coil of single turn has a resistance of 20 Q. Which one of the following is the con-ect value for the resistance between the ends of any diameter of the coil ?

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Q: 36 (NDA-I/2017)
A circular coil of single turn has a resistance of 20 Q.
Which one of the following is the con-ect value for the resistance between the ends of any diameter of the coil ?

question_subject: 

Science

question_exam: 

NDA-I

stats: 

0,9,34,9,15,14,5

keywords: 

{'circular coil': [0, 0, 0, 2], 'coil': [0, 0, 1, 1], 'ect value': [0, 0, 0, 1], 'resistance': [0, 0, 1, 2], 'diameter': [0, 3, 3, 4], 'single turn': [0, 0, 0, 1]}

Option 1: 5 Ω

Option 2: 10 Ω

Option 3: 20 Ω

Option 4: 40 Ω

The resistance of a circular coil of single turn is given as 20 Ω. This resistance is measured between the ends of the coil, which means that it represents the resistance along the circumference of the coil.

When considering any diameter of the coil, we can divide it into two halves. Since the coil is symmetric, the resistance along each half of the diameter should be equal. Therefore, the resistance between the ends of any diameter of the coil would be half of the total coil resistance.

In this case, half of 20 Ω would be 10 Ω. However, none of the given options match this value. Therefore, the correct answer should be "Alert - correct answer should be 10 Ω."

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