When a low resistance wire is connected in parallel to the coil of galvanometer, it works as
Voltmeter
Ammeter
Electromagnet
Generator
Which of the following is used to increase or decrease the amplitude of alternating current?
Transformer
Electromagnets
Galvanometer
Direction of induced current is given by
Fleming’s left hand rule
Fleming’s right hand rule
Lenz’s law
Newton’s law
When a high resistance wire is connected in series to the coil of galvanometer, it works as
Which of the following is used to measure the current in a circuit ?
Rheostat
What material is use for making the armature of an electric bell?
Soft iron
Silver
An alloy of iron and steel
Copper
Most electric motors used in industry are
Induction motors
D.c generator
Step-up transformer
Step-down transformer
Which of the following is most commonly used galvanometer?
Pivoted type galvanometer
Suspended type galvanometer
Moving coil galvanometer
All the above
Which of the following galvanometer has very high sensitivity?
The materials which are attracted by magnets are called
Ferromagnetic
Paramagnetic
Bar magnets
