battery with an emf of 7 V and an internal resistance of 0.5 Ω is connected to a variable resistance R. Find the current and power delivered by the battery when R has each of the following values. 1)R = 0 Ω, I= 2)P = 3)R = 5Ω, I = 4)P= 5)R = infinity, I =, P=
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- The figure represents the charge of 4 RC circuits. Considering that all circuits use a resistor with the same resistance, which one of the five circuits has the capacitor with the smallest capacitance? V V, max Circuit 4 Circuit 3 Circuit 2 Circuit 1 time all 4 circuits have the same C RC circuit 3 has the smallest C RC circuit 4 has the smallest C RC circuit 1 has the smallest C O RC circuit 2 has the smallest C-5.00 Ω , R In the figure below, & = 3.00 V, & = 1.00 V, R1 R3 = 2.00 2, and both batteries are ideal. What is the rate at which energy is dissipated = 4.00 N, in (a) R1? (b) R2? (c) R3? What is the power of (d) battery 1? (e) battery 2? R2 R3 RThe circuit in the figure below contains two resistors, R, 2.20 kN and R, = 3.10 kN, and two capacitors, C, = 2.10 µF and C, = 3.10 µF, connected to a %D battery with emf & = 115 V. There are no charges on the capacitors before switch S is closed. R1 C1 7. R2 C2 3. (i (a) Determine the charge on capacitor C, as a function of time (in ms), after the switch is closed. (Use the following as necessary: t.) -t 5.15 HC 9, = %3D 598 1–e (b) Determine the charge on capacitor C, as a function of time (in ms), after the switch is closed. (Use the following as necessary: t.) HC 92 %3D
- Two ideal emf devices are connected to a set of resistors as shown in the figure below. If 1 = 3.50 V, R1 = 12.00 Ω, R2 = 5.50 Ω, R3 = 16.00 Ω, R4 = 20.50 Ω, and the current through R4 is 0.230 A, what is the emf 2?See the above circuit diagram to answer the question. The battery voltage is V = 56.7 V; R1 = 93 Ohms; R2 = 189 Ohms; R3 = 182 Ohms; R4 = 146 Ohms; R5 = 56 Ohms; and R6 = 146 Ohms. How much power flows through resistor R5? 0.049 W 0.164 W 0.098 W 0.197 WIn the figure below, the battery emf labeled ɛ1 = 5.0 V. Determine the resistance of the resistor labeled R. It is not necessary to solve the entire circuit. Provide the solution: Ω 24 V b a 1,1 140 11A 34N R de 7 A E 13 20 V h
- A circuit consisting of three ideal batteries with voltages 81, 82, and 83, and three ideal resistors with resistances R₁, R₂, and R₁, is shown in the figure. 8₁ = 23.5 V, 82 = 12.0 V, 83 = 33.0 V R = 2.00 kΩ, R2 = 21,0 kΩ, R, = 9,25 ΚΩ Calculate the current Ip through point P. Let the sign of the current correspond to its direction, with "up" being positive. www Ip = P + 82 www 2 R₂ + mAThe figure shows a simple RC circuit consisting of a 100.0 V battery in series with a C = 10.0 μ F capacitor and a R = 4.3 × 105 resistor. Initially, the switch S is open and the capacitor is uncharged. 100.0 V A) 1.1 x 10-³ C B) 2.9 × 10-3 C C) 3.7 x 104 C D) 5.2 x 10-4 C E) 6.6 × 104 C I S R 10.0 µF How much charge q is on the capacitor 2.0 s after the switch is closed? (Hint: First compute the final charge on the capacitor and the RC circuit's time constant.)The circuit of the figure shows a capacitor, two ideal batteries, two resistors, and a switch S. Initially S has been open for a long time. If it is then closed for a long time, what is the change in the charge on the capacitor? Assume C = 41 μF, 81 = 4.1 V, 82 = 5.3 V, R₁ = 0.520, and R₂ = 0.45 0. Number ap Units R₁ C R₂ www
- A 36 V battery is connected to a network of resistors with R1 = 45 Ω, R2 = 36 Ω, and R3 = 108 Ω. What is the potential difference across R3? (in V) (a) 54.0 V (b) 13.5 V(c) 27.0 V(d) 36.0 VA 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?