Advertisements
Advertisements
प्रश्न
Can two agents, doing the same work, have different power?
Advertisements
उत्तर
Yes, since power = work/time the two agents can have different powers if they take different amounts of time to do the same work.
APPEARS IN
संबंधित प्रश्न
Define the term energy.
State the law of conservation of energy.
Define 1 joule of work.
A boy throws a rubber ball vertically upwards. What type of work, positive or negative, is done : by the force applied by the boy?
(a) by the force applied by the boy?
(b) by the gravitational force of earth?
Is power a scalar quantity?
Calculate the amount of work done by a child carrying a bag of 20 kg when he moves a distance of 40 m in
(a) Vertical direction, and
(b) Horizontal direction
Give an example
Electrical energy changes to heat energy.
What should be the characteristic of a source of energy?
