The maximum resistance value for a brown, red, yellow, gold resistor is
126,000 Ω
126,600 Ω
114,000 Ω
132,000 Ω
Correct answer is A
No explanation has been provided for this answer.
The minimum resistance value for a blue, gray, red, silver resistor is
612 Ω
6,120 Ω
6,800 Ω
6,460 Ω
Correct answer is B
Because of 10% tolerance(last color silver), this resistance may vary 10% of 6800.
Minimum resistance value = 6800 - 680 = 6120
Maximum resistance value = 6800 + 680 = 7480
Current flows in a circuit when
a switch is opened
a switch is closed
the switch is either open or closed
there is no voltage
Correct answer is B
No explanation has been provided for this answer.
The unit of electrical charge is the
coulomb
joule
volt
watt
Correct answer is A
No explanation has been provided for this answer.
Materials with lots of free electrons are called
conductors
insulators
semi-conductors
filters
Correct answer is A
No explanation has been provided for this answer.
A voltmeter is connected across the current path.
True
False
Cannot say
None of the above
Correct answer is A
No explanation has been provided for this answer.
A neutral atom is one with an equal number of protons and electrons.
True
False
Cannot say
None of the above
Correct answer is A
No explanation has been provided for this answer.
An open circuit is one that has a complete current path.
True
False
Cannot say
None of the above
Correct answer is B
No explanation has been provided for this answer.
Resistance limits the current.
True
False
Cannot say
None of the above
Correct answer is A
No explanation has been provided for this answer.
A free electron is a valence electron that has broken away from its parent atom.
True
False
Cannot say
None of the above
Correct answer is A
No explanation has been provided for this answer.
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