Which of the following galvanometer has very high sensitivity?
Pivoted type galvanometer
Suspended type galvanometer
Moving coil galvanometer
All the above.
Which of the following law states the law of conservation of energy?
Fleming’s left hand rule
Fleming’s right hand rule
Lenz’s law
All the above
Which of the following converts mechanical energy to electrical energy?
Electric bell
Electric heater
Generator
Electric iron
Which of the following is used to increase or decrease the amplitude of alternating current?
Transformer
Electromagnets
Galvanometer
When a low resistance wire is connected in parellel to the coil of galvanometer, it works as
Voltmeter
Ammeter
Electromagnet
When a high resistance wire is connected in series to the coil of galvanometer, it works as
A d.c motor converts
Electrical energy into mechanical energy
Mechanical energy into electrical energy
Electrical energy into heat energy
Mechanical energy into heat energy
Name the law which helped you to find the direction of the magnetic field lines:
Maxwell’s screw law
What material is use for making the armature of an electric bell?
Soft iron
Silver
An alloy of iron and steel
Copper
The a.c. generator converts
Electrical energy to heat energy