What should the temperature of a typical soldering iron be when joining two wires together?
A. 200 to 300 degrees Fahrenheit
B. 400 to 500 degrees Fahrenheit
C. 500 to 600 degrees Fahrenheit
D. 700 to 800 degrees Fahrenheit
Current is measured using ___________.
A. wires
B. an ammeter
C. a currentometer
D. a spectrometer
Using a fuse rated higher than the required current rating of a circuit can __________.
A. protect your circuit better
B. cause the fuse to blow more often
C. lower your power usage for that circuit
D. result in serious damage to your circuit
A light bulb is 60 watts.
Operated at 120 volts, how much current does it draw?
A. 0.5 ampere
B. 5.0 amperes
C. 50.0 amperes
D. 7.200 amperes
A primary advantage of using a Li-Ion battery instead of a NiMH battery in your cell phone is __________.
A. Li-Ion batteries are lighter
B. Li-Ion batteries last longer
C. Li-Ion batteries don't interfere with signal quality
D. none of the above
Capacitors connected in parallel __________.
A. produce less capacitance.
B. produce more capacitance.
C. are capable of handling more voltage.
D. produce a higher WVDC rating.
If both the resistors shown (R1 and R2) in the diagram below are of equal size, what is the voltage at the arrow?
A. 9V
B. 12 V
C. 18 V
D. 24 V
The klystron is used in __________.
A. low-frequency transmitters
B. radar units
C. audio frequency amplifiers
D. frequency detectors