2. For parallel circuits, you saw that the potential difference across each resistor was the same as the potential difference of the battery. Use your rule for potential difference in series circuits to explain why this would happen. Hint: Imagine following an electron as it leaves the battery, travels one of the paths through the circuit, and returns to the batte What is true about the changes in potential difference for the electron in each type of circuit? What would happen to the potential difference if you only had one resistor in series?

4. Which of the following statements is true of the voltameters? A. Voltmeter 1 and voltmeter 2 will read the same voltage. B. Voltmeter 1 will read 6 V. C. Voltmeter 2 will read 6 V. D. Voltmeter 2 will read the correct voltage across the 3Ω resistor. E. Both voltmeters will read the correct voltage across the 6Ω resistor.

6a. What is the equivalent resistance (R_eq)? 6b. What is the current for the circuit? 6c. What is the potential difference for each resistor? (V1, V2, V3, V4, V5,V6) 6d. What is the current for each resistor? (I1, I2, I3, I4, I5, I6)

If connected to a 3 V potential difference, a certain resistor dissipates 0.5 W. How much energy would the resistor dissipate if it is connected to a 1 V potential difference? A. 0.056 W. B. 0.167 W. C. 0.5 W. D. 1.5 W. E. Cannot be determined.

5. Assume that you need to measure an average temperature in a heated space. You have three identical temperature sensors. Each sensor produces a voltage proportional to temperature such that: Sensor Voltage = .01 * Temperature in degrees Celsius Assume that you bave three voltages, Va, V, and V, You want to take the average of these three voltages lin order to compute the average temperature inside the heated space. This circuit has been suggested as a possibility for computing the average. Rf ww Vout A. Find an analytical expression for Vout in terms of the input voltages and the four resistors. B. Determine if a proper dhoice of resistors will let you use this as a averager. If you can, then find some appropriate values for the resistors.

QUESTION 19 A physics student wishes to measure the voltage change across a resistor with a voltmeter, and afterward, measure the current across the same resistor with an ammeter. The student must a. Place the voltmeter in parallel with the resistor and the ammeter in parallel with the resistor. b. Place the voltmeter in parallel with the battery and the ammeter in parallel with the resistor. c. Place the voltmeter in series with the resistor and the ammeter in series with the resistor. d. Place the voltmeter in series with the resistor and the ammeter in parallel with the resistor. e. Place the voltmeter in parallel with the resistor and the ammeter in series with the resistor.

A portion of a larger circuit is shown in the diagram below. The potential drop between points b and a is Vba = 4.0 V. Similarly, Vcb =3.5 V, Vcd = 2.0 V, Vdf = -0.5 V. Here, if Vba is greater than zero, then a is at a higher potential than b. Answer the following questions in SI units.   1. What is the potential difference Vgf? 2. What is the potential difference Vca? 3. What is the potential difference Vag?

1. Question 1: a. Draw a simple circuit diagram with a battery and a light bulb and how you can simultaneously use a voltmeter to measure the voltage drop across the resistor and use an ammeter to measure the current through the resistor. Label both circuit elements along with the current using the notation from Figures 1 and 2. b. If the battery voltage is 2V and the light bulb resistance is 100, what is the current in this circuit?

three light bulbs with an internal resistance of 1ohm each are wired first in series and then in parallel. each time they are connected to a 12v battery.  which of teh following statement is true   a. the equivalent resistance of the circuit will be greater when they are wired in parallel. b. the current through each light bulb will be greater when they are wired in parallel c. the voltage drop across each resistor will be greater when they are wired in series d. the light bulb will burn brighter when they are wired in series