21.
The potential difference between two points is called voltage.
A. True B. False
Answer & Explanation
Answer: Option A
Explanation:
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22.
An open circuit allows current to flow.
A. True B. False
Answer & Explanation
Answer: Option B
Explanation:
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23.
Switches are used to open and close paths for current.
A. True B. False
Answer & Explanation
Answer: Option A
Explanation:
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24.
Carbon is a semiconductor.
A. True B. False
Answer & Explanation
Answer: Option A
Explanation:
No answer description available for this question.