3 Q-4 An energy source forces a constant current of 2 A for 10 s to flow through a light 121 bulb. If 2.3 kJ is given off in the form of light and heat energy, calculate the voltage drop across the bulb. A homeowner consumes 700 kWh in January. Determine the electricity bill for [2] the month using the following residential rate schedule: Base monthly charge of SAR12.00. First 100 kWh per month at SAR 0.16 /kWh. Next 200 kWh per month at SAR 0.10 /kWh. Over 300 kWh per month at SAR 0.06 /kWh