Question 1
Which unit is used to measure electromotive force (e.m.f.)?
A
ampere
B
joule
C
volt
D
watt
Question 2
[Maximum number: 1]
What is the unit of potential difference (p.d.)?
A
ampere
B
coulomb
C
coulomb / second
D
volt
D
Question 3
[Maximum number: 1]
A cell has an electromotive force (e.m.f.) of 1.5 V .
How much energy is transferred by the cell when it drives 6.0 C of charge round a complete circuit?
A
4.0 J
B
4.0 W
C
9.0J
D
9.0 W
C
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