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# CBSE Class 10 Answered

A wire of length 22.5 cm and resistance was 20 © and the diameter was 0. 3mm then what is the resistivity  of the material .

Asked by hgiri2006 | 06 May, 2022, 10:28: PM
Expert Answer

Given that,

Length of wire, l =22.5 cm = 0.225 m

Resistance, R = 20 Ω

Diameter, d = 0.3 mm = 3× 10-3 m

Now,

Resistivity of wire will be

Answered by Jayesh Sah | 08 May, 2022, 11:29: AM

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