EASY
Earn 100

A centre zero ammeter connected in the rotor circuit of a 6-pole, 50Hz induction motor makes 30 oscillations in one minute. The rotor speed is-

50% studentsanswered this correctly

Important Questions on Physics

EASY
General Awareness>General Science>Physics>Electricity and Magnetism
Which finger shows the direction of current in Fleming’s left-hand rule?
EASY
General Awareness>General Science>Physics>Electricity and Magnetism
On which lake is the Golden Temple located?
MEDIUM
General Awareness>General Science>Physics>Electricity and Magnetism
Five resistance of 0.2 ohms, 0.3 ohms, 0.4 ohms, 0.5 ohms & 12 ohms is connected in series with 12 V Battery. Find the current carried by 0.3 ohms resistance:
MEDIUM
General Awareness>General Science>Physics>Electricity and Magnetism
Which law of physics states that the force between the two electric charges reduces to a quarter of its former value when the distance between them is doubled?
EASY
General Awareness>General Science>Physics>Electricity and Magnetism
An electric current of 0.5 A is passed for 8 minutes through the filament of an electric bulb. What will be the charge passing through the medium of the electric current?
EASY
General Awareness>General Science>Physics>Electricity and Magnetism
George Simon Ohm in whose honour we have the famous Ohm's Law, hailed from which country?
EASY
General Awareness>General Science>Physics>Electricity and Magnetism
Which of the following acids is used in-car batteries?
MEDIUM
General Awareness>General Science>Physics>Electricity and Magnetism
_____ waves include visible light waves, X-rays, Gamma rays, Radio waves, Microwaves, ultraviolet waves and infrared waves.
EASY
General Awareness>General Science>Physics>Electricity and Magnetism
Volt×second is the unit of: 
MEDIUM
General Awareness>General Science>Physics>Electricity and Magnetism
The commonly used safety fuse-wire is made up of _____.
EASY
General Awareness>General Science>Physics>Electricity and Magnetism
What is the name of the phenomena in physics and astronomy which involves the splitting of a spectral line into two or more components of slightly different frequency when the light source is placed in a magnetic field?
EASY
General Awareness>General Science>Physics>Electricity and Magnetism

The shape of the path of free electron in a metal is _____:

EASY
General Awareness>General Science>Physics>Electricity and Magnetism
1 horsepower = approximately _____ watts.
MEDIUM
General Awareness>General Science>Physics>Electricity and Magnetism

What will be the direction of the magnetic field at the very bottom point of a horizontal power line, where the current flows from east to west when viewed from the west end?


 

MEDIUM
General Awareness>General Science>Physics>Electricity and Magnetism
The rating for a fuse used in a household electric circuit is provided on the basis of:
MEDIUM
General Awareness>General Science>Physics>Electricity and Magnetism
Electrical conductance through metals is called electronic conductance and it _____.
EASY
General Awareness>General Science>Physics>Electricity and Magnetism
1 horse power is equal to approximately ______ watts.
EASY
General Awareness>General Science>Physics>Electricity and Magnetism

Which of the following is a landlocked country?

EASY
General Awareness>General Science>Physics>Electricity and Magnetism
Earth Attracts particles because of _____:

 
EASY
General Awareness>General Science>Physics>Electricity and Magnetism

The flow of _____ is anti–clockwise in the given circuit:

Question Image