Test Index

BECE Science 2020 Paper

Question : 16

Total: 40

Solution:

Concept:

Potential difference is the work done to move a unit charge between two points in a circuit.

Explanation:

Its SI unit is joule per coulomb (

\mathrm{J/C}

This unit is given the special name volt (

\mathrm{V}

So, potential difference is measured in volts.

Ampere (

\mathrm{A}

) measures current, watt (

\mathrm{W}

) measures power, and ohm (

\Omega

) measures resistance.

Answer:

D. volt

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