Advertisements
Advertisements
प्रश्न
What energy conversion takes place during the working of a d c motor?
Advertisements
उत्तर
Electrical energy to mechanical energy.
संबंधित प्रश्न
Name the material of core in (a) an electric bell, (b) electromagnet, (c) a d.c. motor, (d) an a.c. generator and (e) a transformer.
Describe briefly one way of producing an induced current in a coil. State one factor that determines the magnitude of induced e.m.f.
State the two properties of the magnetic lines of force around a circular coil.
How does a magnetic field set up by a solenoid change when strength of current in the solenoid is decreased?
Why is soft iron generally used as the core of the electromagnet?
State the factors that can increase the speed of rotation of the coil in a D.C. motor.
State the energy change that takes’place in a D. C. motor.
State the principle of a D. C. motor.
How does a magnetic field set up by a solenoid change when cross-sectional area of solenoid is increased?
Which magnet will you use?
Iron is to be separated from trash.
