Consider the following two statements.

(i)   Kirchhoff's junction law follows from the conservation of charge.

(ii)  Kirchhoff's loop law follows from the conservation of energy.

Which of the following is correct?

The potential difference $\left(V_{\mathrm{A}}-V_{\mathrm{B}}\right)$ between the points $A$ and $B$ in the given figure is

A current of $0.1 \mathrm{A}$ flows through a $25 \mathrm{\Omega }$ resistor represented by the circuit diagram. The current in the $80 \mathrm{\Omega }$ resistor is:

Two batteries with e.m.f. $12 \mathrm{V}$ and $13 \mathrm{V}$ are connected in parallel across a load resistor of $10 \mathrm{\Omega }$. The internal resistance of the two batteries are $1 \mathrm{\Omega }$ and $2 \mathrm{\Omega }$ respectively. The voltage across the load lies between, 

The figure below shows a circuit and its input voltage $V_i$ as a function of time $t$.

Assuming the diodes to be ideal, which of the following graphs depicts the output voltage $V_o$ as function of time $t ?$

For a diode connected in parallel with a resistor, which is the most likely current $\left(I\right)$-voltage $\left(V\right)$ characteristic graph?

Two batteries of emfs $\mathrm{4\; V}$ and $\mathrm{8\; V}$ with internal resistances $\mathrm{1 }\mathrm{\Omega }$ and $\mathrm{2 }\mathrm{\Omega }$ are connected in a circuit with a resistance of $\mathrm{9 }\mathrm{\Omega }$ as shown in figure. The current and potential difference between the points $\mathit{P}$ and $\mathit{Q}$ are,