A 12 HP motor has to be operated 8 hours/day. How much will it cost at the rate of 50 paisa/kWh in 10 days
Text Solution
Verified by ExpertsThe correct answer is:
B
If a motor of 12 HP works for 10 days at the rate of 8 hr/day then energy consumption = power × time
= 
= 2.5 × 10 9 J
Rate of energy = 
i.e. 
energy cost 0.5 Rs
So, 2.5 × 10 9 J energy cost = 
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
A body of mass m accelerates uniformly from rest to in time . As a function of time t, the instan…
A man is riding on a cycle with velocity 7.2 km/hr up a hill having a slope 1 in 20. The total mass…
A motor boat is travelling with a speed of 3.0 m/sec. If the force on it due to water flow is 500 N…
An electric motor exerts a force of 40 N on a cable and pulls it by a distance of 30 m in one minut…
An electric motor creates a tension of 4500 newton in a hoisting cable and reels it in at the rate …
A weight lifter lifts 300 kg from the ground to a height of 2 meter in 3 second. The average power …