Advertisements
Advertisements
प्रश्न
Name five appliances or machines which use an electric motor.
Advertisements
उत्तर
Five appliances that use electric motor are:
(i) Electric fans
(ii) Washing machines
(iii) Refrigerators
(iv) Mixer and grinder
(v) Hair dryer
APPEARS IN
संबंधित प्रश्न
Name a common device where a gear train is used
An electron emitter must have _____________ work function and ___________ melting point.
Define the term 'work'. Write the formula for the work done on a body when a force acts on the body in the direction of its displacement. Give the meaning of each symbol which occurs in the formula.
Why is the work done on an object moving with uniform circular motion zero?
Fill in the boxe to show the corresponding energy transformation.

A force is applied on a body of mass 20 kg moving with a velocity of 40 ms−1. The body attains a velocity of 50 ms−1 in 2 seconds. Calculate the work done by the body.
How long should an electric motor, of power 2 H.P. operate, so as to pump 5 m3 of water from a depth of 15m. [Take g = 10 N kg−1]
