Electronics - Voltage and Current

Exercise :: Voltage and Current - General Questions

26. 

Which unit of charge contains 6.25 × 1018 electrons?

A. An ampere
B. A coulomb
C. A volt
D. A joule

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: 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: 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: Option B

Explanation:

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30. 

Current is considered as the movement of:

A. electrons
B. protons
C. charge
D. nuclei

Answer: Option A

Explanation:

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