Given two resistors of 2.00 ohms and 2.00 ohms connected in series to a DC battery. Which of these is the equivalent resistance of the circuit in SI units? a. 1.00 b. 4.00 c. 8.00
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QUESTION 21
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Given two resistors of 2.00 ohms and 2.00 ohms connected in series to a DC battery. Which of these is the equivalent resistance of the circuit in SI units?
a. 1.00b. 4.00c. 8.00
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- 9. Three identical resistors (R) are connected in a circuit so that two are in series and the third is in parallel with the combination of the first two. If connected to a battery individually, each resistor dissipates power P. Determine the power dissipated by the network combination when connected to the same source. А. ЗР B. 2.5 P C. 2 P D. 1.5 P TEThere is a current of 0.56 A through a lightbulb in a 12 V circuit. What is the resistance of this lightbulb? Select one: O a. 2.14 O b. 0.05 O c. None of the above O d. 6.72 O e. 21.4ach of the circuits below consists of identical batteries and resistors. All of the switches are closed at the same time. A F a, Rank the circuits on the basis of their total resistance. Largest 1. 2. 3. 4. 5. 6. Smallest The ranking cañnot be determined based on the information provided. b. Rank the circuits.on the basis of the elapsed time before the battery "dies". Largest 1. 2. 3. 4. 5. 6. Smallest The ranking cannot be determined based on the information provided. Explain the reasons for your rankings:
- 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. 3.003. A 60 and a 120 resistor are connected in series with a 36 volt battery,. How many Joules per second are dissipated by the 120 resistor. A. 14 watts B. 24 watts C. 48 watts D. 64 watts6. In the circuit shown to the right l = 2.0 A and I = 3.0 A. Find the values of the following: a. Vbd b. la c. RT ime b S.. 50 V
- $6When switch S in the figure is open, the voltmeter V of the battery reads 5 V. When the switch is closed. the voltmeter reading drops to 4.8 v. and the ammeter A reads 1.6 A. Find the internal resistance of the battery. S A. 0.125 2 B. 1.26 0 C. 2.97 Q O D. 0.067 2 Seçimi Sıfırla14. A power supply providing 85 V is hooked in series to a lightbulb, using two connecting wires. The lightbulb has a resistance bulb B. of 130 N and the wires have a resistance of 15 2 each. The actual question is, how much power does the bulb use, and how much power is lost in the wires? This is broken down into steps. a. What is the equivalent resistance of the series circuit? [160 Q] b. What is the current through the circuit? [.53 A] c. What is the magnitude of the potential difference between points A and B? (What is the voltage across wire 1?) [8 V] d. What is the magnitude of the potential difference between points wire 1 wire 2 A B and C? (What is the voltage across the bulb?) [69 V – note that the voltage across the bulb is NOT the 85 V of the power supply. The sum of the voltages, 8+69+8, around the circuit, IS the voltage of the power supply.) e. How much power is used by the bulb? [36.6 W] f. How much power is lost in the one of the wires? [4.2 W] |