Tag: electro-magnetism
Questions Related to electro-magnetism
The transformer is used in ................. current circuits.
Name the material of core in electric bell, electromagnet, d.c. motor, a.c. generator and transformer.
What an electric device to stabilise voltage is called ?
Transformers are used
How will you relate the number of turns in the primary coil of a step-down transformer to that in secondary coil ?
What is the core of the transformer is made up of?
A transformer is employed to
In a step down transformer, the number of turns in the primary is always :
A transformer changes the voltage
Statement A: In a transformer, a large alternating current at low voltage can be transformed into a small alternating current at high voltage
Statement B: Energy in current carrying coil is stored in the form of magnetic field.