Answered

IDNLearn.com provides a collaborative environment for finding and sharing answers. Whether your question is simple or complex, our community is here to provide detailed and trustworthy answers quickly and effectively.

A copper wire has cross sectional area of 6.7 × 10-8 m2and is 1 m long. Calculate the current flowing in the wire if the wire is connected to a 9 V battery. The resistivity of copper is given as 1.68 × 10-8 Ω·m

Sagot :

R = ρ L/ A

Where;

ρ= resistivity = 1.68 x 10^-8 OHM m

L= lenght = 1 m

A = cross sectional area = 6.7 × 10-8 m2

R = resistance

R = 1.68 x 10^-8 OHM m ( 1 m/ 6.7 × 10-8 m2)

R = 0.25 OHM

OHM's LAW

V = IR

V= 9 V

I = V / R = 9 / 0.25 = 36 Ampere

Thank you for joining our conversation. Don't hesitate to return anytime to find answers to your questions. Let's continue sharing knowledge and experiences! Thank you for choosing IDNLearn.com for your queries. We’re here to provide accurate answers, so visit us again soon.