Advertisements
Advertisements
Question
1 kWh = ______ J.
Advertisements
Solution
1 kWh = 3.6 × 106 J
APPEARS IN
RELATED QUESTIONS
When a body moves in a circular path, how much work is done by the body? Give reason.
(Hint: The body is acted upon by the centripetal force.)
What are the S.I. and C.G.S units of work? How are they related? Establish the relationship.
Name the quality which is measured in kW.
Is it possible that no transfer of energy may take place even when a force is applied to a body?
State the principle of moments.
What is the work done when the force on the object and the displacement of the object are perpendicular to each other?
A boy takes 3 minutes to lift a 20 litre water bucket from a 20 m deep well, while his father does it in 2 minutes. Compare:
- the work, and
- power developed by them.
What do you understand by work? Is work a scalar or a vector quantity?
A force F when acts on a body, displace it by a distance d in a direction at an angle θ with the direction of the force. Write down the expression for the work done by the force.
