if a copper wire of resistivity 1.6× 10*-8 ohm meter has cross sectio

1.	if a copper wire of resistivity 1.6× 10-8 ohm meter has cross section area of 10.3 ×10-4 cm*2 calcute the length of wire required to make a 20 ohm resistance
Answer» ong>Answer: GIVEN, R=10Ω A=10×10 −8 m 2 ρ=1.6×10 −8 Ω/m We KNOW that, R=ρ A l l= ρ RA = 1.6×10 −8 10×10×10 −8 l=62.5m The LENGTH of wire COPPER wire is 62.5m

if a copper wire of resistivity 1.6× 10-8 ohm meter has cross section area of 10.3 ×10-4 cm*2 calcute the length of wire required to make a 20 ohm resistance

Answer»

ong>Answer:

GIVEN,

R=10Ω

A=10×10

−8

ρ=1.6×10

−8

Ω/m

We KNOW that,

R=ρ

1.6×10

−8

10×10×10

−8

l=62.5m

The LENGTH of wire COPPER wire is 62.5m

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if a copper wire of resistivity 1.6× 10*-8 ohm meter has cross section area of 10.3 ×10*-4 cm*2 calcute the length of wire required to make a 20 ohm resistance​

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if a copper wire of resistivity 1.6× 10-8 ohm meter has cross section area of 10.3 ×10-4 cm*2 calcute the length of wire required to make a 20 ohm resistance