☰
✕

Electric Charges and Fields
Question
Wired Faculty App

Give the direction in which the induced current flows in the coil mounted on an insulating stand when a bar magnet is quickly moved along the axis of the coil from one side to the other as shown in the figure.  

Answer

(i) If seen from the right hand side, current flows clockwise when South-pole moves towards the coil.

(ii) If seen from the left hand side, current flows clockwise when N-pole of the bar magnet moves away from the coil. 

Sponsor Area

Some More Questions From Electric Charges and Fields Chapter

a) An electrostatic field line is a continuous curve. That is, a field line cannot have sudden breaks. Why not?
b) Explain why two field lines never cross each other at any point? 

Figure shows tracks of three charged particles in a uniform electrostatic field. Give the signs of the three charges. Which particle has the highest charge to mass ratio?