General Physics Questions And Answers


Q1. 
‘X’ is the product of the pole strength of either magnetic pole and the magnetic length of the magnetic dipole. Identify X.

Ans.
Magnetic dipole moment


Q2. 
Under which of these conditions, the torque acting on the current-carrying loop is minimum?

Ans.
θ = 90 degree 


Q3. 
There are two conductors X and Y carrying a current I and moving in the same direction. p and q are two electron beams also moving in the same direction. Will there be attraction or repulsion between the 2 conductors and between the two electron beams separately?

Ans.
The electron beams will attract each other and the conductors also attract each other


Q4. 
When infinitely long parallel wires carry equal currents in the same direction, the magnetic field at the midpoint in between the two wires is zero.

Ans.
True


Q5. 
Magnetic field in toroid is stronger than that in solenoid.

Ans.
True


Q6. 
The north pole of a magnet is brought near a stationary negatively charged conductor. What is the force experienced by it at the poles?

Ans.
Zero


Q7. 
When a charge moves parallel or antiparallel to the direction of the magnetic field, it experiences a maximum force. State true or false.

Ans.
False


Q8. 
Which one of the following is feebly repelled by a magnet?

Ans.
Diamagnetic materials


Q9. 
Which one of the following, when suspended freely, slowly sets itself parallel to the direction of the magnetic field?

Ans.
Paramagnetic materials


Q10. 
Which among the following has a relative permeability much larger than 1?

Ans.
Ferromagnetic materials