Direct current charging and discharging circuit, Electrical Engineering

1. The circuit shown below is a DC charging and discharging circuit.

442_Find the time, t, in msec.png

a. At t = 0 sec, switch S1 is thrown to position 1 ("pos1"). Write the mathematical expressions for Vc (t) and Ic(t).

b. Find VC at t = 15 msec ("millisec") and at t = 30 msec.

c. Find IC at t = 0 msec and at t = 30 msec.

d. Find the time, t, in msec, that it will take for the capacitor to charge up to VC = 3 Volts.

e. After t = 30 msec, the switch S1 is thrown into position 2 ("pos2"), as shown in the schematic below. Find VC when the switch is thrown to position 2, and find the current IC at the same instant.

f. Write the mathematical expressions for Vc (t) and Ic(t) for the time from the throwing of switch S1 to position 2 ("pos2").

g. Find VC at t = 20 msec after S1 goes to pos2.

h. Find VC and IC at t = 8 msec after S1 goes to pos2.

i.  How long does it take VC to fall to 3 Volts.

2166_Find the time, t, in msec 2.png

Posted Date: 3/30/2013 2:25:45 AM | Location : United States







Related Discussions:- Direct current charging and discharging circuit, Assignment Help, Ask Question on Direct current charging and discharging circuit, Get Answer, Expert's Help, Direct current charging and discharging circuit Discussions

Write discussion on Direct current charging and discharging circuit
Your posts are moderated
Related Questions
Q. A three-phase, 50-Hz induction motor has a full load speed of 700 r/min and a no-load speed of 740 r/min. (a) How many poles does the machine have? (b) Find the slip and t

Explain a couple

Q. Explain about Dial Pulses? Dial pulsing (sometimes known as rotary dial pulsing) is the method basically used to transfer digits from a telephone set to the local switch. Pu

Q. Given the K map of a logic function as shown in Figure, in which ds denote don't-care conditions, obtain the SOP expression.

Explain Corrosion. Corrosion: The process of constant eating (or destruction) up of metals (by the surface) by the surrounding is termed as corrosion. These metals are corroded

high resistivity materials

Discuss in detail about pulse broadening in graded index waveguide ? Intermodal dispersion within multimode fibers is minimized along with the use of graded index fibers, ther

A 20µF capacitor is connected in series with a 50 kΩ resistor and the circuit is connected to a 20 V, d.c. supply. Verify: a)  The initial value of the current flowing, b)  T

A battery having of five cells in series. Each cell is 2.5V and internal resistance is 0.05 Ω. A battery is linked to the load resistance of 15Ω. Verify: i.  Total e.m.f

PNP The other kind of BJT is the PNP with the letters "P" and "N" standing for the majority charge carriers inside the dissimilar regions of the transistor. Figure: