Chapter 3 Current Electricity
Top questions
See all →- What do you mean by the steady current? A steady current is that in which the intensity of current remains constant. 1
- What do you mean by the varying current? A varying current is the one in which the intensity of current does not remain constant. 1
- Why does current become a scalar quantity? Currently does not obey vector addition principle, i.e., the sum of currents always remains the same, whatever be the angle between conducto... 1
- The free electrons inside a metallic conductor are in random motion. Can we detect current in the conductor? No. In random motion, the average velocity is zero. 2
- What is the essential condition for current flow in a conductor? When a potential difference is applied across the conductor, an electric field is set up and electrons begin to make directed flow and hence... 1
- How can you produce a net flow of electric charges [electric current] in a conductor? By applying a p.d. Under the action of the electric field applied, electrons make drift motion and this produces current. 1