Question

Ii) concentric equipotential surfaces due to a charged body placed at the centre are shown. identify the polarity of the charge and draw the electric field lines due to it. (

Answer 1

Answer:

Polarity of charge- Negative

Direction of electric field- radially inwards

Explanation:

We know that V= (-)Edr

As the potential is increasing, V='+ve', therefore, the electric field should be "-ve" and that due to a negative charge.

Furthermore, V=(-)(-E)dr=Edr, V comes out to be positive and increasing

I rest my case.

PS:- The answer can be confirmed via CBSE Class 12 Physics Sample Paper (2016)