A parallel-plate air capacitor of capacitance 245pF has a charge of magnitude 0.148μC on each plate. The plates are 0.328mm apart. What is the area of each plate?
An electric dipole of length 4cm when placed with its axis making an angle of 60∘ with a uniform electric field, experience a torque of 43N−m. Calculate the potential energy of the dipole of it has charge ±8nC.
A 4.00μF capacitor and a 6.00μF capacitor are connected in parallel across a 660Vsupply line. Find the charge on each capacitor and the voltage across each of them.
In the circuit shown, a time varying voltage V=2000t volt is applied where t is in second. At time t=5ms. determine the current through the resistor R=4Ω and through the capacitor C=300μF.
In the arrangement of capacitors as shown in the diagram below, the energy stored in 6μF capacitor is E. Find the following (a) Energy stored in the 12μF capacitor. (b) Energy stored in the 3μF capacitor. (c) Total energy drawn from the battery.
A test charge ′q′ is moved without acceleration from A to C along the path from A to B and then from B to C in electric field E as shown in the figure. (i) Calculate the potential difference between A and C. (ii) At which point (of the two) is the electric potential more and why?