Question

electrical equipment in an office takes a current of 13 ampere from a 240 volt supply estimate the cost per week of electricity if the equipment is used for 30 hours each week and 1 kilowatt hour of energy cost 7 paisa

Answer 1

Answer:

Explanation: now the P(power ) = VI

V=240 volt

I=13amp

p = 3120 per second

for 30 hours p = 3120×30×3600

p = 228960000

per hour it cost 7 paisa for 1oooW  

cost is 1602720 paisa

hope it will help !!!!!!!!!