Question

A
A thin wire was wound 30 times closely over a boiling tube . A total length of the winding was found to be 9.3 mm. Calculate the radius of the wire

Answer 1

Answer:

The answer is 0.15mm

Explanation:

This so because the no. of times the wire is wounded and the length of wire then discovered when divided gives thickness of wire and when again divided by 2 gives radius.

length of wire after wounding/no.of turns =Diameter of wire

diameter /2 =radius..

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