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3.17 What conclusion can you draw from the following observations on a resistor made of alloy manganin?

Current

A

Voltage

V

Current

A

Voltage

V

0.2 3.94 3.0 59.2
0.4 7.87 4.0 78.8
0.6 11.8 5.0 98.6
0.8 15.7 6.0 118.5
1.0 19.7 7.0 138.2
2.0 39.4 8.0 158.0

 

Answers (1)

best_answer

The ratio of Voltage to current for the various values comes out to be nearly constant which is around 19.7.

Hence the resistor made of alloy manganin follows Ohm's law.

Posted by

HARSH KANKARIA

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