7. Capacitor 3 in Fig 7a) is a variable capacitor. Figure 7b) gives the electric potential V1 acrosscapacitor 1 versus C3. The horizontal scale is set by C3s = 12.0 µF. Electric potential V1approaches an asymptote of 10 V as C3 →o, What are (a) the electric potential V across thebattery, b) what C1, and C2?·108-Cs2.(a)(b)Fig 7

Referring to the given circuit diagram, the capacitors C2 and C3 are connected in the parallel…

Answered: 7. Capacitor 3 in Fig 7a) is a variable…

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter20: Capacitance In Ac Circuits

Section: Chapter Questions

Problem 5PP: Three capacitors having capacitance values of 20F,40F, and 50F are connected in parallel to a 60 -...

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Determine the total capacitance, total charge, individual voltage drop and charges across each capacitor. Use two decimal places for your answer. Put your answer for the individual voltage and charge for each capacitor in a table for faster checking. Thank you! Here are the values for the capacitors: C1 = 34 C6 = 29 C2 = 46 C7 = 38 C3 = 28 C8 = 23 C4 = 43 C9 = 32 C5 = 24 C10 = 23
a) Obtain the equivalent capacitance in pF b) Determine the charge Q1, Q2, and Q4 (nC) at the capacitor C1, C2, and C4 c) Solve the voltage (V) across C1, C2, C3, C4 (USE 2 DECIMAL PLACES FOR THE FINAL ANSWERS)
Q19. For the series-parallel inductor circuit shown in figure B19, answer the following questions. L2 2mH 4mH L3 L4 SMHS 5mH 3.5mH L6 8mH L7 2mH L3 4.5mH e Figure B19 Determine the inductance, L3 value. ii) If E is the energy stored in inductor for current, Calculate the energy if the current value is increased twice.
An inductor is "charged" to some value, then connected in series with a 1002 resistor and allowed to "discharge". A measurement of the potential difference across the resistor is shown in the figure below. Compute the time constant of the circuit, the inductance of the inductor, and the initial current through the inductor. 12 10 8 6 Potential across resistor (V) 2 0 0 0.0001 0.0002 0.0003 0.0004 0.0005 0.0006 0.0007 time (s)
Determine the total capacitance, total charge, individual voltage drop and charges across across each capacitor. Use two decimal places for your answer. Please put your answer for the individual voltage and charge for each capacitor in a table for faster checking. Thank you! C1= 27 F C2= 53 F C3= 21 F C4= 50 F C5= 17 F C6= 22 F C7= 45 F C8= 16 F C9= 25 F C10= 16 F V= 110 V Note: This topic is under capacitors.
Which of the statements below are correct I. Capacitors use electric field to store current. II. Inductance is increased with permeability of the core material. III. Capacitance of a capacitor decreases with the increasing permittivity of the dielectric. IV. Current of an inductor can not change abruptly. a. Il and IV b. I and || C. None d. III and IV e. Il and II
In the figure ɛ = inductor is ideal. If the switch is closed for a long time, what is the current through the inductor. Give your answer in A. 10.0 V, R, = 4.00 N, and R2 = 1.00 N. The %3D %3D
A resistor and a capacitor are connected in series with a variable inductor. When the circuit is connected to a 240 – V, 50 – Hz supply, the maximum current given by varying the inductance is 0.5 A. At this current, the voltage across the capacitor is 250 V. Calculate the values of (a) the resistance, (b) the capacitance, and (c) the inductance. draw circuit diagram
6) When the frequency of an a.c. circuit containing resistance and capacitance is decreased, the current (a) decreases (b) increases (c) stays the same 7) In a series a.c. circuit the voltage across a pure inductance is 12 V and the voltage across a pure resistance is 5 V. The supply voltage is (a) 13 V (b) 17 V (c) 7 V (d) 2.4 V 8) The impedance of a coil, which has a resistance of X ohms and an inductance of Y henrys, connected across a supply of frequency K Hz, is (a) 2π Κ Υ (b) X + Y (c) √x² + y² (d) √X² + (2nKY)² 9) When a capacitor is connected to an a.c. supply the current (a) leads the voltage by 180° (c) leads the voltage by 1/2 rad (b) is in phase with the voltage (d) lags the voltage by 90° 10) In an R-L-C series a.c. circuit a current of 5 A flows when the supply voltage is 100 V. The phase angle between current and voltage is 60° lagging. Which of the following statements is false? (a) The circuit is effectively inductive (c) The equivalent circuit reactance is 25 2 (b)…
A 20-ohm resistor and a capacitor are connected in series with a battery of 60 volts. At t = 0, there is no charge on the capacitor. Find the capacitance if the current at t = 5 seconds is 3/e^s amperes. Ans. 0.05 Farads
6) When the frequency of an a.c. circuit containing resistance and capacitance is decreased, the current (a) decreases (b) increases (c) stays the same 7) In a series a.c. circuit the voltage across a pure inductance is 12 V and the voltage across a pure resistance is 5 V. The supply voltage is (a) 13 V (b) 17 V (c) 7 V (d) 2.4 V 8) The impedance of a coil, which has a resistance of X ohms and an inductance of Y henrys, connected across a supply of frequency K Hz, is (a) 2π Κ Υ (b) X + Y (c) √x² + y² (d) X² + (2nKY)²
Consider the circuit shown in the figure below. The four capacitors have capacitances C₁ = 3.5µF, C₂ = 9.3μF., C3 16.9μF, C₁ 8.7μF and are connected to a battery of voltage V = 7.1Volts. When all capacitors are fully charged, determine the voltage across C4. Express your answer in units of volts using two decimal places. C3 C₁ V C2 H СА

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