Physics, asked by vimalpandharpure11, 9 months ago

The resistance of a wire when melted and casted into a new wire of half of the original length, becomes 9 ohm. What was its original resistance?

Answers

Answered by Anonymous

Explanation:

If a wire of resistance R is melted and recast to half of its length then new resistance of the wire will be

Answer. ANSWER IS-: So the new resistance is 75% less than old resistance. SO given wire has a resistance of 16 Ohms. If the length is halved after melting wire, it means Area of cross section would have doubled..

Previous Question

Next Question

Similar questions

Math, 4 months ago

solve (0.3)cube-(0.3)cube+(0.1)cube...

English, 4 months ago

Tell me some inspirational things that I can used to motivate someone...

English, 4 months ago

1. Write the likes and dislikes of louie about the school and teacher ...

English, 9 months ago

he is a vizier and a barrister(use besides)...

Chemistry, 9 months ago

True or false. 1. Copper and iron ubiquitous.

Geography, 1 year ago

(ii) Man plays the dual role of both the produce and consumer of resources. (iii) ___ development in different environmental conditions of the world is a product of action. (iv) The the number of productive population, the higher is the development of the country. (v) Kural population implies people living in villages...

Science, 1 year ago

what are dry fruits ...

Math, 1 year ago

એક મહિનામાં 5 બુધવાર છે અને મહિનાના છેલ્લા દિવસે ગુરુવાર આવતો હોય તો મહિનાની પહેલી | તારીખે કયો વાર હતો ? (ઓ) શુક્રવાર (બ) મંગળવાર (ક) રવિવાર (C) ગુરુવાર...

The resistance of a wire when melted and casted into a new wire of half of the original length, becomes 9 ohm. What was its original resistance? ​

Answers

The resistance of a wire when melted and casted into a new wire of half of the original length, becomes 9 ohm. What was its original resistance?