A material that does not allow current under normal conditions is a(n)
insulator
conductor
semi-conductor
valence
Correct answer is A
No explanation has been provided for this answer.
The colored bands for a 4,700 ohm resistor with a ten percent tolerance are
yellow, violet, red, gold
yellow, violet, orange, gold
yellow, violet, red, silver
orange, violet, red, silver
Correct answer is C
No explanation has been provided for this answer.
When the current is 2.5 A, how many coulombs pass a point in 0.2 s?
12.5 C
1.25 C
0.5 C
5 C
Correct answer is C
No explanation has been provided for this answer.
Eight-tenths coulomb passes a point in 4 s. The current in amperes is
1.6 A
16 A
2 A
0.2 A
Correct answer is D
No explanation has been provided for this answer.
A two-terminal variable resistor is known as a
potentiometer
thermistor
rheostat
wiper
Correct answer is C
No explanation has been provided for this answer.