Question

the resistance of wire of length 8m and area cross 0.5m square is found to be 20 ohm. calculate the resistivety​

Answer 1

Answer:

Resistance of the wire is  ohm.

Step-by-step explanation:

Given : A 50 m length of wire of cross section area 0.01 sq.mm and of resistivity  

To find : Calculate the resistance?

Solution :

The resistance formula,

Where, R is the resistance

is the resistivity

l=50 m is the length of the wire

a=0.01 sq.m is the area of cross section

Substitute the values in the formula,

Therefore, Resistance of the wire is  ohm.

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Answer 2

Answer:

0.5 is the answer

Explanation:

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