Question

a current of 2 ampere passes through a conductor and produces 80 joule of heat in 10 Seconds. the resistance of the conductor is 0.5 ohm. 2 ohm. 4 ohm. 20 ohm​

Answer 1

Answer:

b) 4 ohm

Explanation:

Given,

Current (I) = 2 ampere

Heat (H) = 80 joule

Time (T) = 10sec

Applying Heat = Current×Resistance×Time

80 = 2×R×10

80 = 20R

R = 80/20 = 4ohm