Use Kirchhoff's second law to deduce the p.d. across the resistor of resistance R in the circuit shown in Figure 9.10, and hence find the value of $R$. (Assume the battery of e.m.f.$10 \mathrm{V}$ has negligible internal resistance.) 

You can use Kirchhoff's second law to find the current $I$ in the circuit shown in the figure given below. Choosing the best loop can simplify the problem. Which loop in the circuit should you choose?

Find the current $I$ in the circuit shown in the figure given below:

Use Kirchhoff's second law to deduce the resistance $R$, of the resistor shown in the circuit loop.

Apply Kirchhoff's laws to the circuit shown in Figure to determine the current that will be shown by the ammeters ${\mathrm{A}}_1, {\mathrm{A}}_2$ and ${\mathrm{A}}_3.$

The cell shown in Figure provides an e.m.f. of $2.0 \mathrm{V}$. The p.d. across one lamp is $1.2 \mathrm{V}$. Determine the potential difference across the other lamp.

You have five $1.5 \mathrm{V}$ cells. How would you connect all five of them to give an e.m.f. of $1.5\mathrm{V}$.

You have five $1.5 \mathrm{V}$ cells. How would you connect all five of them to give an e.m.f. of  $4.5 \mathrm{V}$.

Calculate the current drawn from a $12 \mathrm{V}$ battery of negligible internal resistance connected to the ends of the following: 

(a). $500 \mathrm{\Omega }$ resistor