A 0.75μF capacitor is charged to 100 V . It is then connected in series with a 55Ω resistor and a 120 Ω resistor and allowed to discharge completely. Question: How much energy is dissipated by the 55Ω resistor?
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A 0.75μF capacitor is charged to 100 V . It is then connected in series with a 55Ω resistor and a 120 Ω resistor and allowed to discharge completely.
Question: How much energy is dissipated by the 55Ω resistor?
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- Suppose you wanted to charge an initially uncharged 110 pF capacitor through a 55 MΩ resistor to 90.0% of its final voltage. How much time (in s) would be required to do this?You have a 79.1 mF capacitor initially charged to a potential difference of 12.5 V. You discharge the capacitor through a 3.69 Ω resistor. What is the time constant?A 14.5-μF capacitor is charged to a potential of 40.0 V and then discharged through a 65.0 Ω resistor. How long after discharge begins does it take for the capacitor to lose 90.0% of its initial charge? (Express your answer to three significant figures.) How long after discharge begins does it take for the capacitor to lose 90.0% of its initial energy? (Express your answer to three significant figures.) What is the current through the resistor at the time when the capacitor has lost 90.0% of its initial charge? (Express your answer to three significant figures.) What is the current through the resistor at the time when the capacitor has lost 90.0% of its initial energy? (Express your answer to three significant figures.)
- A 10.0 −μF capacitor is charged to a potential of 50.0 V and then discharged through a 185 −Ω resistor. How long does it take the capacitor to lose half of its charge? How long does it take the capacitor to lose half of its stored energy?A charging RC circuit controls the intermittent windshield wipers in a car. The emf is 12.0 V. The wipers are triggered when the voltage across the 110 μF capacitor reaches 10.0 V; then the capacitor is quickly discharged (through a much smaller resistor) and the cycle repeats. What resistance should be used in the charging circuit if the wipers are to operate once every 1.40 s?A 1.60-μF capacitor is charging through a 12.0 Ω resistor using a 12.0 V battery. What will be the current when the capacitor has acquired 1/4 of its maximum charge and Will it be 1/4 of the maximum current?
- In the figure &₁ = 2.97 V, 82=0.938 V, R₁ = 4.44 Q, R₂ = 2.110, R3 = 3.71 Q, and both batteries are ideal. What is the rate at which energy is dissipated in (a) R₁, (b) R2, and (c) R3? What is the power of (d) battery 1 and (e) battery 2? www R₁ =48₁ www ww R R$ (a) Number (b) Number E₂1 (c) Number i (d) Number i (e) Number i Textbook and Media Units Units Units Units Units کے!! The circuit in the figure below has been connected for a long time. Let R, = 12 Q, R, = 9 N, and V = 16volts. 1.00 N R1 1.00 µF R2 2.00 N RC1 (a) Find the Charye on the capacitor. Q = HC (b) If the battery is disconnected from the circuit, what is the time constant when the capacitor discharges? T3D sr (c) Over what time interval does the capacitor discharge to 0.35 of its initial charge? Time =When an initially uncharged capacitor is charged through a 25-k resistor by a 75-V dc ideal power source, it takes 0.30 ms for the capacitor to reach 50% of its maximum charge? What is the capacitance of this capacitor?
- A 15 μF capacitor initially charged to 25 μC is discharged through a 1.2 kΩ resistor. How long does it take to reduce the capacitor's charge to 10 μC?-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 RA 12.0 μF capacitor is charged by a 13.0 V battery through a resistance R. The capacitor reaches a potential difference of 4.00 V at a time 3.00 s after charging begins. Find R. ΚΩ