Draw schematic diagram of a circuit consuting of a battery of five 2V cells, a 5 ohm, a 10 ohm and a 15 ohm resistor and a plug key, all connected in series. Calculate the electric current passing through the above circuit when the key is dosed.

Explanation

The requued circuit diagram is :

Applied potential difference
`V=5xx2=10 V `
Total resistance
R = 5 +10+15=30 `Omega`
Current `I= (V)/(R) = (10)/(30) = 0.33A `