What are the practical applications of Direct-Current Circuits
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R1.) What are the practical applications of Direct-Current Circuits?
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- 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?Which of the following is the energy consumed by a 16 Ω lightbulb when it is wired to a 12 V battery for 25 seconds? a. 225 b. 270 c. 240 d. 18010. Using Kirchhoff's rules, determine the currents and their directions through the 60, 30, 50, and 20 ohm resisters.** 603 -Muw 501 20-22 30-52 um 90v 45 V
- QUESTION 22 Given two resistors of 70 ohms and 40 ohms connected in series to a DC battery. If the 70-ohm resistor has a current of 3.00 Amperes through it then which of these is the current through the 40-ohm resistor in SI units? a. four sevenths of 3.00 b. one-third c. 3.006. Determine the currents I, I,, I3, I,, I,, and Is for the electrical network shown in the figure 25 below. 14 V R; = 32 R2= 22 25 V1529 222 12V+ A) Fill in a VIPR table for this circuit: Power (P) Device: Voltage (V) Current (I) Resistance (R) 2 ohm bulb 3 ohm bulb Battery B) Is the 2 ohm or 3 ohm bulb brighter? Briefly explain or show calculations to prove your answer. C) If you attached a third lightbulb in parallel to the other two, how would it affect the brightness of the 2 ohm lightbulb? 322Which of the following is an installation requirement for the grounding electrode conductor in a communications system? A. It must be run as straight as practicable. B. It must be, at minimum, 4 AWG. C. It must be solid or stranded aluminum. D. It must be isolated and covered.D nected in series and placed across a potential difference of 50 V. What is a. the equivalent resistance of the circuit? b. the current in the circuit? c. the voltage drop across each lamp? d. the power dissipated in each lamp? A 20.0-2 lamp and a 5.0-2 lamp are con-Q4] A certain capacitor is in series with a 720 resistor as it is being charged. At the end of 10 ms its charge is half the final value. The capacitance is approximately: 9.6 µF 14 µF 20 μF 7.2 F 10 F None of the above a. b. c. d. e. f.