A resistor with resistance R is connected to a battery that has emf 12.0 V and internal resistance r = 0.40 Ω. For what two values of R will the power dissipated in the resistor be 80.0 W?
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A resistor with resistance R is connected to a battery that has
emf 12.0 V and internal resistance r = 0.40 Ω. For what two values of
R will the power dissipated in the resistor be 80.0 W?
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- A 6.00 nF capacitor that is initially uncharged is connected in series with a 900 2 resistor and an emf source with & = 360V and negligible internal resistance. A long time after the circuit is completed (enough time that capacitor is fully charged), what is the current across the resistor? O 0.20 A O 0.067 A 1.33 A OA 0.24 A O 0.40 A 0.16 AIn a series RC circuit shown, the switch is closed and after a short time, the charge q on the capacitor is 5.2 x 10-5 C. What is the current in the resistor at this time?Consider the circuit shown below. The resistor has R= 40 ohms and the capacitor has C= 6 x10^-6 F. Initially the switch is open and there is no charge on the capacitor and no current in the resistor. At a time after the switch is closed the current in the resistor is 2 A and the charge on the capacitor is q= +3.00 x 10^-4 C. What is the emf of the battery?
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- Four 20.0 W resistors are connected in parallel and the combination is connected to a 20.0 V ideal battery. The current in any one of the resistors is:A 589 x 10^-6 F capacitor is discharged through a resistor. The potential difference across the capacitor decreases from its initial value of 89.7 to 25.1 in 3.73 s. What is the resistance of the resistor?Two resistors have resistances R1 and R2, where R1 = 2.8R2. When configured in series and connected to a source potential of 23.6 V, they draw 0.723 W of power. If their configuration is changed to be in parallel and the source potential remains the same, what power does the circuit draw