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Let vab=9V, R1=R2=3kiloohms and R3=6kiloohms
Calculate the ff:
a. power dissipation along 3rd resistor
b.current passing the 2nd resistor
c.equivalent resistance
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- Two resistors of equal resistance R are connected in parallel across a cell with emf V. What is the value of the current flowing through one of the resistors? Select one: a. V/2R b. 2V/R c. V/R d. R/VA = 60 B = 70 C = 170 D = 71. In the figure below battery potentials are V, = 10 V and V2 = 20 V. These are not specified. You may take them any order you want. The resistances are R = 5 0, R2 = 15 N, and R3 = 25 N. Find the current through each resistor. Ry- ww ww
- 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 TE3. vol, tag e vol, tag e 4. Sketch plots of capacitor voltage vs. time for two RC circuits being charged by a battery. Both plots should be at the same scale. a. R = 250 22, C = 1000 μF time b. R = 250 2, C = 10 μF time Calculate the time constant for the R = 250 2, C = 10 uF RC circuit.la. This resistor has a resistance of 48002, and 32mA of current flows to the left into it. The right end of the resistor is at a potential of VR= 12.5V. What is the potential difference AV across the resistor? - VL? resistor 1b. What is the potential VL of the left end of the resistor? 1c. What is the power output by the resistor? R = 4800 1d. What is the current that flows out of the resistor? I = 32mA o at io. - VR=12.5V or gads di ei tedw $70 a vrutsd ads to bas ovisyon siis liszug
- all resistors have the same value and so do the batteries. Determine the intensity of the current through the resistor R. R= 4Ω V= 4VGiven the circuit components below: 1. Calculate the current coming from the 9-V battery, I1. 2. Calculate the EMF of the other battery, E. 3. Calculate the current traveling through the 1.0- resistor. 4. How much power is being dissipated by the 3.0- resistor? 5. How much power is the 9-V battery supplying? 9.0 V 3.0 Ω -1/₁1+ www 2.0 Ω 3.0 A ww 1.0 Ω + A E 1₁ 1₂12. A lightbulb uses 4 A when it is connected across a 120 V source. What is the resistance in the resistane = V Vano -301 210-3012 lightbulb? 13. What is work? the transfer of energy by a force object agit is Displaced acting on by vitve opergy which a body possesses 14. What is kinetic energy? tion 15. What is potential energy? energy that is waiting to be a 16. A boy pushes on a parked car with a force of 111 N. The car does not move. How much work does the boy do on the car? Explain your answer. Work : Owork becasue the car. didn't move 17. In the absence of air resistance, how would the acceleration of a 2.0 kg book and the acceleration of a 3.3 kg rock differ if the objects were dropped from the same height? 18. What are Newton's three laws of motion (summarize them)? ject will not Law I an Change unle torce is acted on gecond low, the force On un object is equal! mass & its accelertion 3 law, when 2 bu interact they apply Forces to each oth 19. If your weight is 777 N, how much…
- QU5 a). A circuit consist of five resistors connected as below, determine the effective resistance in the circuit. R3 R5 R2 R4 Given that R1, R2,R3,R4 and R are given respectively as 500, 250, 300, 600 and 700Q, what is the current in the circuit if the potential across the resistors is 24 V?Kate has an iron wire connected across the terminals of a battery. When her circuit is at 20 degrees celcius , a current of 9.2 mA flows through her wire. When the circuit is placed somewhere else the current becomes 8mA. If the iron has a temp coefficient of resistivity of 5x10^-3(degrees celcius)^-1 , the temp of the new environment in degrees celcius is? a. -46 b. -6.1 c. 10 d. 30 e. 504a. Find the current in the circuit (magnitude and direction). 4b. Find the potential difference of V_ab of point a with respect to point b. 4c. Find the potential difference of V_bc of point b with respect to point c. 4d. What is the totatl rate at which electrical energy is dissipate in R1, R2, and R3 resistors. 4e. What is the power output of the 26.0V battery? 4f. At what rate is the electrical energy being converted to other forms in the 10.0V battery? 4g. Show that power output of the 26.0V battery equals the overall rate of dissipation of electrical energt in the rest of the circuit?