Voltage and current electrical interview question

26.

Which unit of charge contains 6.25 × 1018 electrons?
A.     An ampere    B.     A coulomb
C.     A volt    D.     A joule
Answer & Explanation

Answer: Option B

Explanation:

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27.

A switch is a device that:
A.     short circuits complex circuits
B.     holds a fuse
C.     has double poles
D.     opens or completes a current path
Answer & Explanation

Answer: Option D

Explanation:

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28.

The term used to designate electrical pressure is:
A.     voltage    B.     current
C.     resistance    D.     conductance
Answer & Explanation

Answer: Option A

Explanation:

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29.

Which electronics material opposes the movement of free electrons?
A.     Conductor    B.     Insulator
C.     Semiconductor    D.     Element
Answer & Explanation

Answer: Option B

Explanation:

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30.

Current is considered as the movement of:
A.     electrons    B.     protons
C.     charge    D.     nuclei
Answer & Explanation

Answer: Option A

Explanation:

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