Electronics - Voltage and Current

Exercise :: Voltage and Current - Filling the Blanks

1. 

The unit for voltage is the ___ and the symbol for voltage is ___.

A. joule, V
B. coulomb, J
C. volt, Q
D. volt, V

Answer: Option D

Explanation:

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2. 

A connection to the frame of a piece of electronic equipment is sometimes referred to as ___ ground.

A. a chassis
B. an earth
C. a circuit
D. either chassis or circuit

Answer: Option D

Explanation:

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3. 

Fuses and circuit breakers are designed to ___ when excessive current flows.

A. buzz
B. illuminate
C. close
D. open

Answer: Option D

Explanation:

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4. 

The capacity of a battery cell is measured by the amount of __________ that can be supplied over time.

A. current
B. voltage
C. coulombs
D. joules

Answer: Option A

Explanation:

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5. 

A rheostat is ___.

A. a three-terminal device that controls current
B. a two-terminal device that controls current
C. a two-terminal device that divides voltage
D. a three-terminal device that divides voltage

Answer: Option B

Explanation:

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