Advertisements
Advertisements
प्रश्न
The current induced in a closed circuit only if there is ______.
Advertisements
उत्तर
The current induced in a closed circuit only if there is change in number of magnetic field lines linked with the circuit.
APPEARS IN
संबंधित प्रश्न
Name the device which converts mechanical energy into electric energy.
What type of generator is used at Power Stations?
What is the function of brushes in an electric generator?
Explain the principle of an electric generator.
State two ways in the which the current alternating current and direct current?
State whether the following statement are true of false:
A miniature circuit breaker (MCB) works on the heating effect of current.
Name and state the principle of a simple a.c. generator. What is its use?
A flat coil of wire rotates at a constant speed about an axis perpendicular to a uniform magnetic field. Draw a graph to show how the induced e.m.f. varies relative to the positions of the coil during its one complete rotation. At what position of the coil, the e.m.f. has the maximum value?
A coil of insulated copper wire is connected to a galvanometer. What will happen if a bar magnet is withdrawn from inside the coil?
An AC generator is provided with ______ slip rings that rotate with the coil.
