Problem 3: At t=0, a charged 10-uF capacitance is connected to a voltmeter, as shown. Themeter acts like a resistance in the circuit. Att=0, the meter reads 50 V. At t=30 seconds, thereading is 25 V, find the resistance of the volt meter.t = 010 μFVM

Given circuit is = Meter is replaced by a resistor (R). Given values are =

Answered: Problem 3: At t=0, a charged 10-uF…

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 -...

See similar textbooks

Similar questions

Incandescent lighting of 500 W is connected in parallel with an inductive load. A clamp-on ammeter reveals a total circuit current of 7 A. What is the inductance of the load connected in parallel with the incandescent lights? Assume a voltage of 120 V and a frequency of 60 Hz.
You find that a 25-F capacitor connected to 480 VAC is defective. The storeroom has no capacitors with a 480-VAC rating. However, you find two capacitors rated at 50 F and 370 VAC. Can these two capacitors be connected in such a manner that they can replace the defective capacitor? If yes, explain how they are connected and why the capacitors will not be damaged by the lower voltage rating. If no, explain why they cannot be used without damaging the capacitor.
A 15-F AC capacitor is connected in series with a 50 resistor. The capacitor has a voltage rating of 600 WVDC. The capacitor and resistor are connected to a 480-V, 60-Hz circuit. Is the voltage rating of the capacitor sufficient for this connection?
You are working in an industrial plant. You have been instructed to double the capacitance connected to a machine. The markings on the capacitor, however, are not visible. The capacitor is connected to 560 volts and an ammeter indicates a current of 6 amperes flowing to the capacitor. What size capacitor should be connected in parallel with the existing capacitor? What is the minimum AC voltage rating of the new capacitor? What is the minimum DC voltage rating of the new capacitor? What is the minimum KVAR size that can be used in this installation?
You are a journeyman electrician working in an industrial plant. Your task is to connect an inductor to a 480-V, 60-Hz line. To determine the proper conductor and fuse size for this installation, you need to know the amount of current the inductor will draw from the line. The nameplate on the inductor indicates that it has an inductance of 0.1 H. An ohmmeter reveals that it has a wire resistance of 10 . How much current should this inductor draw when connected to the line?
A 1-H inductor is connected in series with a 6-ohm resistor. If the connection is energized from a 9-V DC source, determine the current (in amperes) through the circuit for a long time. The initial current is 100 mA. Express your answers accurate to four decimal places. No need to put the units.
An R-C series circuit has a supply voltage of 100 V. The resistance is 200 ohms and the capacitance is 0.0001 Farad. Solve for the current "i" at any time "t". Solve for the charge "q" at any time "t".
A resistance of 12 ohms and capacitance of 0.01 farad is connected in series with a 200 volts battery. Find the charge after 0.5 second and the current after 0.4 second
A five-Ohm resistor is in series with a 0.001-Henry inductor and is supplied from a 10-V DC source. Solve for the current 2 milliseconds after the switch was turned on. a. 2.0000 Amperes b.1.9999 Amperes c.1.0001 Amperes d. 2.0001 Amperes
Q1 (a) For the circuit in Figure Q1(a), the total charge, Q. is 0.0018 C. (i) Find the value of capacitance, C2 (ii) Calculate the voltage, Vi across capacitor C. (iii) Determine the charge, Qa stored in capacitor C4 C1 Qt +V- 40μF C3 C2 10F 10uF C4 90 V Figure Q1(a)
C) A 25 A electrodynamic ammeter is controlled by a spring having a constant of 5.7295x 10-6 Nm/rad. The full scale deflection is 110°. Determine the inductance of the instrument while measuring a current of 20 A. The mutual inductance at 0° deflection is 4 u H and the change in mutual inductance is linear with the deflection.
Three 20uF capacitors are connected in series with each other. A 1k ohm resistor and an LED connected in series to each other as well, but branched in parallel to all three capacitors. How long would the LED stay lit after power is removed? What current would flow through it during the charge cycle if VT=9v?

SEE MORE QUESTIONS

Recommended textbooks for you

Delmar's Standard Textbook Of Electricity

Electrical Engineering

ISBN:

9781337900348

Author:

Stephen L. Herman

Publisher:

Cengage Learning

Delmar's Standard Textbook Of Electricity

Electrical Engineering

ISBN:

9781337900348

Author:

Stephen L. Herman

Publisher:

Cengage Learning

SEE MORE TEXTBOOKS

Problem 3: At t=0, a charged 10-uF capacitance is connected to a voltmeter, as shown. The meter acts like a resistance in the circuit. Att=0, the meter reads 50 V. At t=30 seconds, the reading is 25 V, find the resistance of the volt meter. t = 0 10 μF VM