G5C - Electrical Principles

What causes a voltage to appear across the secondary winding of a transformer when an AC voltage source is connected across its primary winding?

What is the output voltage if an input signal is applied to the secondary winding of a 4:1 voltage step-down transformer instead of the primary winding?

What is the total resistance of a 10-, a 20-, and a 50-ohm resistor connected in parallel?

What is the approximate total resistance of a 100- and a 200-ohm resistor in parallel?

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?