16.
Which voltage source converts chemical energy to electrical energy?
A. Electrical generator
B. Battery
C. Solar cell
D. Electronic power supply
Answer & Explanation
Answer: Option B
Explanation:
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17.
An example of potential energy is:
A. tea-kettle steam
B. a moving vehicle
C. the sun
D. a battery
Answer & Explanation
Answer: Option D
Explanation:
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18.
If 40 C of charge flow past a point in 20 s, what is the current?
A. 2 A B. 0.5 A
C. 20 A D. 40 A
Answer & Explanation
Answer: Option A
Explanation:
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19.
Batteries differ from fuel cells in that
A. a battery is a closed system
B. a battery uses hydrogen and oxygen to create electricity
C. a battery uses a polymer electrolyte membrane
D. none of the above
Answer & Explanation
Answer: Option A
Explanation:
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20.
The removal of a non-neutral subatomic particle converts the atom into a:
A. charged ion
B. nucleus
C. heavier element
D. compound
Answer & Explanation
Answer: Option A
Explanation:
No answer description available for this question.