Find the value of the unknown resistance $X$ in the circuit, Figure, if no current flows through the section $AO.$ Also calculate the current drawn by the circuit from the battery of emf $6V$and negligible internal resistance.

 

Determine the effective resistance between the points $A$ and $B$ In the network in Fig.$5.155.$

Determine the equivalent resistance between the points $A$ and $B$ Shown in Fig.$5.156.$

Using Kirchoff's rule, determine the value of the unknown resistance $R$ in the circuit Figure so that no current flows through a $4\Omega$ resistance. Also find the potential difference between $A$ and $D$.

In the circuit shown in Fig.$5.159,$ Assuming point $A$ To be at zero potential, use Kirchhoff's rules to determine the potential at $B.$

Use Kirchhoff's rules to write the expressions for the currents $I_{1,}{I}_2$ and $I_3$ In the circuit diagram shown in Fig.$5.160.$

Use Kirchoff's rules to loops $ACBPA$ and $ACBQA$ to write the expressions for the currents, $I_1,I_2$ and $I_3$ in the network shown in Figure

Use Kirchhoff's laws, calculate the potential difference across the $8\Omega$ Resistor in the circuit of Fig.$5.161.$