Question

An electrical device gives out 5760J of heat energy in 1 minute, when current flows through it at a potential difference of 24V. Find the resistance of the device.

Answer 1

Explanation:

H=(V^2 T)/R

5760 =( 24^2 * 1)/R

R=0.1

Answer 2

Voltage=24

Heat=5760J

T in sec=1min=60sec

H=P×t

P=V2/R=576/R

H=576×60/R

R=576×60/5760

R= 6 ohm

I hope this helps (θ‿θ)