Electronics - Voltage and Current

Exercise :: Voltage and Current - General Questions

11. 

A voltmeter is used:

A. to measure current
B. in series with the circuit
C. in parallel with the circuit
D. to measure coulombs

Answer: Option C

Explanation:

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12. 

If the current in a circuit equals 0 A, it is likely that the

A. voltage is too high
B. resistance is too low
C. circuit has a short
D. circuit is open

Answer: Option D

Explanation:

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13. 

Current equals:

A. mca1_1002a1.gif
B. coulombs × time
C. mca1_1002c1.gif
D. voltage × time

Answer: Option A

Explanation:

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14. 

What are the unit and symbol for current?

A. Ampere, A
B. Coulomb, I
C. Ampere, Q
D. Ampere, I

Answer: Option D

Explanation:

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15. 

Which part of an atom has no electrical charge?

A. Electron
B. Neutron
C. Proton
D. All of the above

Answer: Option B

Explanation:

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