Advertisements
Advertisements
Question
Fill in the blanks with suitable words :
One watt is a rate of working of one ___________ per ___________.
Advertisements
Solution
One watt is a rate of working of one joule per second.
APPEARS IN
RELATED QUESTIONS
Define 1 watt of power.
An electric heater is rated 1500 W. How much energy does it use in 10 hours?
Find the energy in joules consumed in 10 hours by four devices of power 500 W each.
How much is the mass of a man if he has to do 2500 joules of work in climbing a tree 5 m tall? (g = 10 m s−2)
Name the physical quantity whose unit is watt.
A body does 1200 joules of work in 2 minutes. Calculate its power.
A car of weight 20000 N climbs up a hill at a steady speed of 8 m/s, gaining a height of 120 m is 100 s. Calculate : work done by the car.
In loading a truck, a man lifts boxes of 100 N each through a height of 1.5 m.
How much work does he do in lifting one box?
Which one of the following statements about power stations is not true?
An electric motor raises a load of 0.2 kg, at a constant speed, through a vertical distance of 3.0 m in 2 s. If the acceleration of free fall is 10 m/s2, the power in W developed by the motor in raising the load is :
