List of top Physics Questions on coulombs law asked in AP EAMCET

The charge \( q \) (in coulombs) passing through a \( 10 \Omega \) resistor as a function of time \( t \) (in seconds) is given by: \[ q = 3t^2 - 2t + 6 \] The potential difference across the ends of the resistor at time \( t = 5 \) s is:

Two equally charged metal spheres $A$ and $B$ repel each other with a force of $4 \times 10^{-5}\, N$. Another identical uncharged sphere $C$ is touched to $A$ and then placed at the mid- point of the line joining the spheres $A$ and $B$. The net electric force on the sphere $C$ is