Which of the following device does not work on electric motor?
Electric toaster converts electric energy into heat which is used to cook food. There is no electric motor in an electric toaster. So option 1 is correct.
Is television work on electric motor?
No, type of motors or generators are in television. … 5) main circuit board for TV.
Which appliances work on electric motor?
Devices in which electric motors are used
- Water pumps.
- Electric fans.
- Electric mixers.
- Washing machines.
What stops an electric motor?
Dynamic braking is another method for braking a motor. It is achieved by reconnecting a running motor to act as a generator immediately after it is turned off, rapidly stopping the motor. The generator action converts the mechanical energy of rotation to electrical energy that can be dissipated as heat in a resistor.
Which of the following devices does not work on the principle of electromagnetism?
Out of the given options, room heater does not use the principle of electromagnetic induction. It is based on the heating effect of electric current.
Which of the following appliances is based on the principle of electromagnetism?
An electric generator is a machine which generates electricity by using the principle of electromagnetic induction.
How do you make an electric motor more powerful?
We can increase the turning force (or torque) that the motor can create in three ways: either we can have a more powerful permanent magnet, or we can increase the electric current flowing through the wire, or we can make the coil so it has many “turns” (loops) of very thin wire instead of one “turn” of thick wire.
What are those materials with electric motor?
So, what are these motor component materials made from? Powder metal components for motors generally consist of iron, nickel, and cobalt. Iron is the cheapest of the three, so many designers turn there first.
What appliances have brushless motors?
Brushless motors have come to dominate many applications, namely hard drives, CD/DVD players, pumps, fans, robotic vacuum cleaners, coffee machines, mixers, hairdryers, bread cutters and spindle drives in adjustable or variable speed applications.
What device is using a motor?
Electric motor is the converter of the electrical energy to the required mechanical energy in any device. The electronic devices such as water pumps, fans, refrigerators, mixer grinders and other appliances use electric motors to function.
What items use DC motors?
At home, small DC motors are used in tools, toys and various household appliances. In retail, the applications of DC motors include conveyors and turntables, while in an industrial setting, large DC motor uses also include braking and reversing applications.