Electricity consumption bill is based on the measurement of –
1. Watt
2. Voltage
3. Ohm
4. Ampere
Select your answer from the following codes:

Correct answer: (a) Only 1

Explanation

The electricity bill is based on energy used, measured in kilowatt-hours ("units"): power in watts × time.

Voltage, resistance (ohm) and current (ampere) are not billed separately, so the answer is only 1.