Task: Using the given charge and discharge values at these discrete points in time, construct two plots of Voltage (Ve) vs. Time (t) for charging and discharging of the capacitor. ID: Name of Student: 3.1 RC Circuit The objective of this part is to study the charging and discharging of a capacitor by measuring the potential difference (voltage) across the capacitor as a function of time. The students will also measure the experimental time constant and use it to determine the experimental value of the capacitance of the capacitor. Table 1. Voltage-Time Table for Charging Capacitor Time t(s) Potential Diffèrence V(t) Time t(s) Potential Diffèrence V(t) Ov 40 1.328 V 5 50 0.332 V 1.386 V 10 | 60 0.638 V 1.422 V 15 70 0.861 V 1.437 V 20 1.017 V 80 1.448 V 25 90 1.131 V 1.458 V Task: Using your collected Voltage-Time data for discharging, calculate time constant t. Show the formulations and data pair you used in the calculation. If the resistance is given to be equal to R=15k2, calculate the value of capacitance from t. 30 |100 1.220 V 1.458 V Table 2. Voltage-Time table for Discharging Capacitor Your Answer: Time t(s) Potential Difference V(t) Time t(s) Potential Difference V(t) 1.479 V 40 0.119 V 5 50 1.136 V 0.057 V 10 60 0.830 V 0.026 V 15 0.602 V 70 0.005 V Task: What possible changes can be made to the circuit so that the capacitor will charge faster to its maximum voltage value? 20 80 0.441 V 0.002 V 25 90 0.317 V 0.001 V Your Answer: 30 0.228 V 100 0.001 V

1) Propose and draw a circuit of a resistive current divider in half

Describe in words how the charges behave on capacitors which are in a parallel circuit. How do the individual capacitor charges compare to the charge of the equivalent capacitor?

3. For the circuit, (i) Find the voltage vc and the current ic if the capacitor was initially uncharged and the switch is thrown into position A. (ii) Find the voltage vc and the current ic if the switch is thrown into position B. (iii) Plot the waveforms for the questions (i) and (ii) for both the voltage vc and the current ic. Mark the time constant for part (i) and part (ii) in the waveforms with the corresponding values for current and voltage. A ww ic 20 kΩ B + + 12 V Vc. R, •10 kΩ 0.05 μF

Fill in the blanksadd, capacitance, charge capacity, dielectric, dissipate, electrical circuits, , passive, plates,proximity, storesA capacitor is a 1 …………. two-terminal electrical component that 2 ……… potential energy in anelectric field. The effect of a capacitor is known as 3. …………... While some capacitance exists betweenany two electrical conductors in 4. …………… in a circuit, a capacitor is a component designed to 5.…… capacitance to a circuit. The capacitor was originally known as a condenser.The physical form and construction of practical capacitors vary widely and many capacitor types are incommon use. Most capacitors contain at least two electrical conductors often in the form of metallic 6.………… or surfaces separated by a 7. ………medium. A conductor may be a foil, thin film, or anelectrolyte. The nonconducting dielectric acts to increase the capacitor's 8. ………… ………. Materialscommonly used as dielectrics include glass, ceramic, plastic film, paper, mica, and oxide…

Please determine if each question is True. If false, please explain why a) A fully charged capacitor behaves identically to a break in the wire (i.e. no current passes through it).b) An uncharged capacitor behaves identically to a break in the wire (i.e. no current passes through it).c) Whether charging or discharging a capacitor, the charge on the capacitor can be modeled using an exponentiallyincreasing function.

ASAP plz

6. For a resistor, what resistance corresponds to a short circuit? For an uncharged capacitor, what value capacitance corresponds to a short circuit? Explain your answers. a. Repeat for an open circuit.