From the schematic diagram of a circuit consisting of a battery of five $2 \mathrm{V}$ cells, a $5 \mathrm{\Omega }$ resistor, a  $10 \mathrm{\Omega }$ resistor and a $15 \mathrm{\Omega }$ resistor, and a plug key, all are connected in series, calculate the electric current passing through the circuit when the key is closed.

If a $12 \mathrm{V}$ battery is connected to an arrangement of resistance given in the figure. Calculate the total effective resistance of the arrangement.
 

If a $12 \mathrm{V}$ battery is connected to an arrangement of resistance given in the figure. Calculate the total current flowing in the circuit.

In the given circuit, calculate the total resistance of the circuit.

In the given circuit, calculate the current shown by the ammeter.

For the circuit diagram shown alongside, calculate the value of current through each resistor.

For the circuit diagram shown alongside, calculate the total current in the circuit.