The device used to change the speed of an electric fan is -

Related MCQs

• The device used to change the speed of an electric fan is –
• We feel cool when we sit near the fan, this is because –
• During hot weather, the fan produces a feeling of comfort. This is because –
• The electric charge is stored in a device called:
• Necessary element of change in solar energy to electric energy –
• A man standing on a edge of a cliff throws a stone vertically upwards with a certain speed. He then throws another stone downwards with the same speed. Find the ratio of the speeds of the two stones when they hit the ground.
• Speed of sound in air is unaffected by change in :
• Velocity of sound in air does not change with the change of –
• Which of the following is used for regulated electric supply?
• Water cannot be used to extinguish fire caused by electric current, because –