Science Physics MCQ-158

General Science-Physics MCQ Quiz for RBI, DelhiPolice, UPPSC, CivilsPrelims, SSC, UPSC, CDS, NDA Exams



A source of magnetic field is

 
 
 
 

A magnetic needle is kept in non uniform magnetic field. It experiences

 
 
 
 

The SI unit of pole strength is

 
 
 
 

Magnetic lines of force

 
 
 
 

When magnet is heated, it

 
 
 
 

In the case of a bar magnet, the line of magnetic induction

 
 
 
 

Time period in a vibration magnetometer will be infinity

 
 
 
 

Demagnensation of a magnet can be done by

 
 
 
 

All the magnetic materials lose their magnetic properties when

 
 
 
 

The relative permeability of a paramagnetic material is

 
 
 
 

Which of the following is most suitable for the core of an electromagnet ?

 
 
 
 

The susceptibility of a diamagnetic material is

 
 
 
 

The relative permeability of a diamagnetic material is

 
 
 
 

The susceptibility of a paramagnetic material is

 
 
 
 

The susceptibility of a paramagnetic material

 
 
 
 

The temperature at which a ferromagnetic material becomes paramagnetic is called

 
 
 
 

The core of an electromagnet is made of soft iron because soft iron has

 
 
 
 

Soft iron is used in many parts of electrical machines for

 
 
 
 

A small piece of an unmagnetised material gets repelled when it is brought near a powerful magnet the material is

 
 
 
 

Vibration magnetometer works on the principle of

 
 
 
 

Tangent galvanometer is used to measure

 
 
 
 

Identity the paramagnetic substance :

 
 
 
 

Magnetic permeability is maximum for

 
 
 
 

The susceptibility of diamagnetic material

 
 
 
 

Which one of the following is not made of soft iron ?