Figs, (a) and (b) show the field lines of a positive and negative point charge respectively.
Give the signs of the ‘potential differences `(V_p-V_Q),(V_B-V_A)`

Figs, (a) and (b) show the field lines of a positive and negative point charge respectively. Give the sign of the potential energy difference of a small negative charge between the points .Q and P, A and B.

Figs, (a) and (b) show the field lines of a positive and negative point charge respectively. Give the sign of the work done by the field in moving a- small positive charge from Q to P.

Figs, (a) and (b) show the field lines of a positive and negative point charge respectively. Does the kinetic energy of a small negative charge increase or decrease in going from B to A ?

There are four concentric shells A, B, C and D of radii a, 2a, 3a and 4a respectively. Shells B and D are given charges +q and -q respectively. Shell C is now earthed. The potential difference V_A-V_C is

In an A.C. circuit, the potential difference across an inductance and a resistance joined in series are respectively 16V and 20V. The total potential difference across the circuit is

A capacitor of capacitance C is charged to a potential difference V from a cell and then disconnected from it. A charge +Q is now given to its positive plate. The potential difference across the capacitor is now

Two cells A and B ofe.m.f. 2V and 1.5V respectively, are connected as shown in figure through an external resistance 10 ohm. The internal resistance of each cell is 5 ohm. The potential difference E_(A) and E_(B) across the terminals of the cells A and B respectively are

The rms value of potential difference V shown in the Fig.2.42 is

A circuit consists of three batteries of emf E_1 = 1 V, E_2 = 2 V and E_3 = 3 V and internal resistances 1Omega, 2 Omega and 1 Omega respectively which are connected in parallel as shown in the figure. The potential difference between points P and Q is