General Class

Why is the primary winding wire of a voltage step-up transformer usually a larger size than that of the secondary winding?

What is the voltage output of a transformer with a 500-turn primary and a 1500-turn secondary when 120 VAC is applied to the primary?

What transformer turns ratio matches an antenna’s 600-ohm feed point impedance to a 50-ohm coaxial cable?

What is the equivalent capacitance of two 5.0-nanofarad capacitors and one 750-picofarad capacitor connected in parallel?

What is the capacitance of three 100-microfarad capacitors connected in series?

What is the inductance of three 10-millihenry inductors connected in parallel?

What is the inductance of a circuit with a 20-millihenry inductor connected in series with a 50-millihenry inductor?

What is the capacitance of a 20-microfarad capacitor connected in series with a 50-microfarad capacitor?

Which of the following components should be added to a capacitor to increase the capacitance?

Which of the following components should be added to an inductor to increase the inductance?

What is the minimum allowable discharge voltage for maximum life of a standard 12-volt lead-acid battery?

What is an advantage of batteries with low internal resistance?

What is the approximate forward threshold voltage of a germanium diode?

Which of the following is characteristic of an electrolytic capacitor?

What is the approximate forward threshold voltage of a silicon junction diode?

Why should wire-wound resistors not be used in RF circuits?

What are the operating points for a bipolar transistor used as a switch?

Which of the following is characteristic of low voltage ceramic capacitors?

Which of the following describes MOSFET construction?

Which element of a vacuum tube regulates the flow of electrons between cathode and plate?