4. Draw a circuit diagram of a resisior and a lamp connected in parallel to a battery, with a switch that would only turn off the lamp. 5. Draw a circuit diagram with one battery supply, one lamp connected in a series.
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- 20. Consider the circuit below. 12V 2Ω a b I3 | 12 8V а. Use Kirchhoff's junction rule to write an equation for the currents labeled in the circuit. b. Use Kirchhoff's loop rule twice and your Algebra I skills to solve for each current in the circuit.6. Which of the following would have an effect on the resistance of a conducting wire? A. The emf of the battery to which the resistor is connected B. The current passing the through the conductor C. The manner in which it is connected to other resistors D. The material from which the wire is made.What is not a resistor? Check all that apply. a. Something that limits the flow of electrons b. Something that limits the voltage c. Something that robs energy from the system in terms of heat d. Something that produces a voltage drop across it
- 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.2. Determine the voltage Vx for the circuit. Note that the polarity of Vx was not provided. 14V + ? V
- 4. Six identical resistors are connected in series with a battery. The number of joules per second supplied by the battery is then determined. If a seventh resistor is added (in series) the number of joules per second supplied by the battery: A. increases B. decreases C. stays the same D. changes, but may increase or decreaseA 20-A fuse in a household electric circuit burns out. What catastrophe could happen if the fuse is replaced by a 30-A fuse? No catastrophe. It's just a fuse, you replace it and the circuit works again. It would cause the circuit to overheat and could lead to a fire. It could cause the fuse to explode. You appliances might not work properly and use much more electricity, leading to a very high electrical bill