Question

lem . The resistance of a 5m length of wire is 600Ω. Determine

(a) the resistance of an 8m length of the same wire, and {ans ,k= 120 R=960 ohm, )

(b) the length of the same wire when the resistance is 420Ω. {ans​

Answer 1

Answer:

150 ohm meter

we only we have to say ohm meter or

by symbol of ohm and m

it will be the best option in life for mpc students in physics of electric current topic

Answer 2

Answer:

(a) Resistance, R, is directly proportional to length, l, i.e. R∝l. Hence, 600Ω∝5m or 600=(k)(5),where k is the coefficient of proportionality. Hence, k=600/5=120When the length l is 8 m, then resistance R=kl=(120)(8)=960(b) When the resistance is 420Ω, 420=kl, from which, lengthl=420/k=420/120=3.

Explanation:

thanks