In Figure $9.5$, calculate the current in the wire $\mathrm{X}$. State the direction of this current (towards $\mathrm{P}$ or away from $\mathrm{P}$).

Calculate$\Sigma I_{\mathrm{in}}$ and $\Sigma I_{\mathrm{out}}$ in Figure 9.6. Is Kirchhoff's first law satisfied?

Use Kirchhoff's first law to deduce the value and direction of the current I in Figure 9.7.

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 ${\mathrm{A}}_3.$