Question text
9 An electric motor, connected to the mains, is used to lift bricks to the top of a building. There is a fuse in the plug. How can the efficiency of the motor be increased? A Increase the friction in the motor. B Reduce the energy losses in the motor. C Use a fuse with a higher current rating. D Use a fuse with a lower current rating.
9 An electric motor, connected to the mains, is used to lift bricks to the top of a building.
There is a fuse in the plug.
How can the efficiency of the motor be increased?
A Increase the friction in the motor.
B Reduce the energy losses in the motor.
C Use a fuse with a higher current rating.
D Use a fuse with a lower current rating.
Select your answer: