Practice Work, Power and Energy RRB PYQ questions from Railway examinations, including RRB NTPC PYQ, RRB Group D PYQ, RRB JE PYQ, RRB ALP PYQ and RRB Technician PYQ. This topic-wise Physics question set covers important concepts related to work, power, energy, kinetic energy, potential energy, mechanical energy and the conservation of energy.
The Work, Power and Energy RRB PYQ collection is useful for candidates preparing for Railway examinations and revising important Physics concepts through previous year questions. Questions from this topic can include both conceptual and numerical problems, making regular practice important for improving calculation accuracy and understanding the application of Physics formulas.
Whether you are preparing for RRB NTPC Work, Power and Energy PYQ, RRB Group D Work, Power and Energy PYQ, RRB JE Work, Power and Energy PYQ, RRB ALP Work, Power and Energy PYQ, or RRB Technician Work, Power and Energy PYQ, practice these previous year questions regularly as part of your Railway Physics preparation.
Start practicing Work, Power and Energy RRB PYQs with answers and explanations and strengthen your Railway Physics preparation.
121
What is the rate of doing work or transferring energy called?
RRB Group D
15/10/2018 / Shift-II
2018
✓ Answer:APower
Power is the rate of work or energy transfer.
122
A 50 kg boy climbs 43 stairs in 10 seconds. Each stair is 15 cm high. Find his power.
RRB Group D
24/10/2018 / Shift-III
2018
✓ Answer:C322.5 W
h = 43 × 0.15 = 6.45 m. Using g = 10 m/s², P = 50 × 10 × 6.45/10 = 322.5 W.
123
Which of the following is a formula for electrical power?