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JAMB Physics 2014 Paper

Question : 32

Total: 41

PHCN measures its electrical energy in

Solution:

Concept:

Electrical energy used for billing is measured in kilowatt-hours.

Explanation:

Power is measured in watts (

\mathrm{W}

), but energy consumption is the product of power and time.

PHCN bills customers in kilowatt-hours (

\mathrm{kWh}

), which is a practical unit of electrical energy.

Answer:

\mathrm{kWh}

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