To cause a current of 10 amperes to flow through 20-ohm resistance, the voltage needed is ______________.

Answer(s): D

Ohm’s law states that V = IR. V = 10 × 20 = 200.

Silver is a better conductor than copper. But copper is more often used because of ______________.

Answer(s): A

Silver is a better conductor, but it’s prohibitively expensive.

Electronic circuits that produce high frequency AC are called ______________.

Answer(s): D

Oscillators produce high-frequency AC.

If you plug an appliance designed for AC into a DC power source, the appliance _________________.

Answer(s): B

When DC is applied to an AC appliance, the amount of resistance is less, so more current flows through the wire and heat builds up.

Free ASVAB Section 5: Electronic Information Exam Braindumps (page: 11)