Which of the following best describes a series circuit?

2. When an RC series circuit is connected to a dc source, what is the voltage on a capacitor after one time constant when (a) charging from voltage and (b) discharging from fully charged zero a condition?

2. To explore resistors in series and parallel, we will use a virtual lab for DC circuits. Open your web browser and go to the following site: https://phet.colorado.edu/sims/html/circuit-construction-kit-dc/latest/circuit-construction- kit-dc_en.html (a) Construct a circuit with resistors (or light bulbs) in series and record current and voltage. How does the current through the resistor (or the bulb) in a single-resistor circuit with the current through the same resistor when it is connected in compare series with a second resistor? (b) Now construct a circuit with resistors (or light bulbs) in parallel and record current and voltage. Compare the current through the battery in the series circuit with the current through the battery in the parallel circuit. Is it lower, the same, or higher?

16. You see a group of small fuse holders on a DIN rail in an industrial control cabinet. The fuse holders are in groups of five and are separated by a single terminal block. What's connected to that terminal block? A. System ground B. A control signal C. The AC or DC power to the fuses D. The power supply neutral 17. Which one of the following types of raceway offers the greatest protection for the conductors in the raceway? A. Metal wireway B. EMT conduit C. Rigid conduit D. Flexible conduit 18. Class 1 conductors or cables may be run with other Class 1 conductors if they all A. are part of different machine circuits. B. have different power supplies. C. have reduced voltages on the conductors. D. have the same insulation value.