Figure AV ION ISA ww < 1 of 1 What is the value of resistor R in (Figure 1) if AV = 9.7 V and I = 1.9 A? Express your answer in ohms. View Available Hint(s) R= Submit [5] ΑΣΦΙΚΟ Provide Feedback ? S2
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A: Solution b)t=8*10-6 sR=1.19*103 ohmq0=5.3*10-6 CC= 2*10-9 F--Charge after time t,
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- You have a faculty position at a community college and are teaching a class in automotive technology. You are deep in a discussion of using jumper cables to start a car with a dead battery from a car with a fresh battery. You have drawn the circuit diagram in Figure P27.16 to explain the process. The battery on the left is the live battery in the correctly functioning car, with emf and internal resistance RL, where the L subscript refers to live. Its terminals are connected directly across those of the dead battery, in the middle of the diagram, with emf and internal resistance RD, where the D subscript refers to dead. Then, the starter in the car with the dead battery is activated by closing the ignition switch, allowing the car to start. The resistance of the starter is RS. A student raises his hand and asks, So is the dead battery being charged while the starter is operating? How do you respond? Figure P27.16GARDNER COLLEGE THE GLOBAL SCHOOL OF INNOVATION GENERAL PHYSICS 2 Activity 8: Series and Parallel Connection NAME: SECTION: Instruction: Answer the following problems on the space provided in each number. Use GISNF (Given, Illustration, Solution, Normal Answer, Final Answer) format. Use extra sheet if necessary. 1. Three resistors are connected in series with 27N, 27N and 540 resistances respectively. If the battery voltage is 12 V, what is the potential difference on R, = 540? 2. If three 400 resistors, are connected in parallel, what will be the combination's equivalent resistance? 3. A set of Christmas light consists of twenty-five 6502 bulbs connected to a 220V source. What is the (a) total resistance of the Christmas light, and (b) potential difference across each light bulb. 4. What resistance should be connected in parallel with a 202 resistor so the a current of 3A is drawn from a 12 V source?R3 Problem 5: An electric circuit consisting of wires, batteries, and resistors is shown. All currents have been labeled and assigned directions. I R2 R1 Part (a) Which statement is a correct expression of Kirchhoff's Junction Rule for currents with labels and directions assigned on the above figure? MultipleChoice : 1) I1 + I2 - 13 = 0 2) I1 + I2 + I3 = 0 3) None of these choices make a correct statement of Kirchhoff's Junction Rule. 4) I1 - 12 - 13 = 0 5) I1 - 12 + I3 = 0 Part (b) Which statement is a correct expression of Kirchhoff's Loop Rule for the sum of voltage changes for the loop on the left? MultipleChoice : 1) IR1 + E1 - 82 + I2R2 = 0 2) -11R1 + E1 + 82 + I2R2 = 0 3) None of these choices make a correct statement. 4) -I1R1 - E1 + E2 + I2R2 = 0 5) IR1 - E1 + E2 - I2R2 = 0 Part (c) Which statement is a correct expression of Kirchhoff's Loop Rule for the sum of voltage changes for the loop on the right? MultipleChoice : 1) -I2R2 + E2 - I3R3 - I3R4 + 83 = 0 2) -I2R2 - E2 - I3R3…
- 5. The switch in the figure below has been closed for a very long time. a. What is the charge on the capacitor? b. The switch is opened at t=0 s. At what time has the charge on the capacitor decreased to 10% of its initial value? 600 100 V 40 0 100 2.0 μFQuestion 8 A current of 13 amperes branches into currents x, y, and z through resistors with resistences 2, 8, and 6 ohms as shown. X = y = I=13 amps Z= It is known that the current splits in such a way that the sum of the currents through the three resistors equals the initial current. The energy generated in each resistor is given by E I'R, where I is the current in that resistor and R is the resistance. Use Lagrange multipliers to find the currents x, y, and z which will minimize the total energy generated. (It turns out that nature always splits the currents so that the total energy is minimized.) Questis I=x, R=2 I=y, R=8 I=2, R=6 m Vide amps amps ampsYou may want to review (Pages 768 - 771). Part A What is the magnitude of the current in the 13 S2 resistor in (Figure 1)? Express your answer with the appropriate units. HA ? I= 0.23 A Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining Part B What is the direction of the current in the 13 $2 resistor in (Figure 1)? from left to right through the resistor from right to left through the resistor Figure
- For all of the following, we're considering parallel plate capacitors. Select all the true statements. If none of them are true, select "None of the above." A. Capacitance is the property of a device that enables it to store current.B. Charge is stored in the dielectric medium between the plates of a capacitor.C. The capacitance of a parallel plate capacitor depends on the charge stored on the plates.D. The charges on the two plates of a capacitor are equal in magnitude and sign.E. Adding a dielectric between the plates of an isolated air-filled charged capacitor reduces the charge stored on the device.F. None of the above.Part A The two 10-cm-long parallel wires in (Figure 1) are separated by 5.0 mm. For what value of the resistor R will the force between the two wires be 1,26x10-4 N? Express your answer in ohms. ? Ω Submit Request Answer Provide Feedback Next > Figure 1 of 1 2Ω R 9 V 10 cm 9 V 5 mmQUESTION 4 A physics student wishes to measure the voltage change and current across a resistor in a circuit using a voltmeter and an ammeter respectively. How should the student connect the voltmeter and ammeter to the circuit? a. The voltmeter should be connected in series with the resistor, and the ammeter should be connected in series with the resistor. O b. The voltmeter should be connected in series with the resistor, and the ammeter should be connected in parallel with the resistor. C. The voltmeter and ammeter should be connected in a series combination that is, in turn, connected in parallel with the resistor d. The voltmeter should be connected in parallel with the resistor, and the ammeter should be connected in parallel with the resistor. e. The voltmeter should be connected in parallel with the resistor, and the ammeter should be connected in series with the resistor.
- 2. Resistors in series or in parallel can be treated as a single “equivalent resistor”By using Requivalent = R1+ R2 or 1/ Requivalent=1/R1 + 1/R2, respectively. a.What is the equivalent resistance of the series resistors? Express your answer in terms of R. b. Draw a new circuit diagram that uses the equivalent resistor. c. What is the equivalent resistance of the parallel resistors in your new circuit diagram? Express your answer in terms of R. d.Draw a new circuit diagram that uses the equivalent resistor.1. Consider the circuit shown. What is the current in 3-Ω resistor? (Assume that the battery has negligible internal resistance)A. 3A B. 4A C. 8A D. 9A 2. Refer to (1). What is the current in 4-Ω resistor?A. 3A B. 4A C. 8A D. 9AHow would the value of each of the four following physical quantities change over time after the switch is closed? Explain why for each case in 1 or 2 sentences. (You may assume that the resistance of the batteries, the wires, and the switch are negligibly small for this question). a. The voltage across the capacitor, VCAP b. The voltage across the light bulb, VBULB c. The current through light bulb, IBULB d. VBULB + VCAP