Advertisements
Advertisements
प्रश्न
Relate 1 KWh (kilowatt hour) with joule.
Advertisements
उत्तर
1 KWh = 1 KW × 1 h = 1000 W × 3600s = 36,00,000 J.
संबंधित प्रश्न
When does a force do work?
State the condition when the work done by a force is positive. Explain with the help of examples.
Name the quality which is measured in eV
Is it possible that no transfer of energy may take place even when a force is applied to a body?
A mechanic can open a nut by applying a force of 200 N while using a lever handle of 50 cm length. How long handle is required if he wants to open it by applying a force of only 50 N?
What happens to the power if the time for doing work is reduced from t second to t/10 second?
Derive a relation between the S.I. and C.G.S. unit of force.
A coolie carries a load of 30 kgf through a distance of 500 m in 5 minutes while another coolie B carries the same load through the same distance in 10 minutes. Compare the
(i) work done, and
(ii) power developed. (Take: g = 10md−2)
For the following scenario, state whether the work done by gravity is positive, negative, or zero.
A car in neutral gear is coming down the slope.
