Explore BrainMass
Share

Circuits

Circuit with Potentiometer

Analyze the following circuit (in attached file) completely to find the loop currents and then the output voltage Vo across R4 with a potentiometer R3 of 1 k ohm. See attached file for full problem description.

Electronics_A charging capacitor

In the circuit below how long does it take for the current to drop to 1 uA when the switch is moved from position A to B. (Assume that it has been at A for a long time)

Rank the bulbs according to brightness.

Please see attached file for full problem description. 7. The circuit shown contains 6 identical bulbs. Rank the bulbs according to brightness, starting with the brightest bulb(s). If two or more bulbs have equal brightness, indicate with an "=" sign. 8. Same as above question, except with different circuit diagram.

Relationships of current and voltage in parallel networks

Please help with 7.12, 7.14, 7.15 and 7.16. See attached file for full problem descriptions. 7.12) In this exercise we will express mathematically the relationships of current and voltage in parallel networks. 7.14) (A) Refer to the definitions for series and parallel connections of elements given in section 4, The defini

Gates and Circuits : Find the output of the given circuit.

1. In this exercise, find the output of the given circuit. (See attached file for full problem description with diagram) --- For each topic, demonstrate a knowledge and capability by giving the following information: 1) Problem Solution: (solution for an even number problem) see below... 2) Personal Observation: (p

Thevinin Equivalent to Work out max Power

This is part of a maximum power problem that I have worked through. Could I please get someone to write down the equation for working out the ZTH(Thevinin equivalent load for this circuit) also could you find Vab1 is the voltage of the circuit using the voltage source and open circuit current source and applying the voltage d

Electrical Circuits with Bulbs

See attached file for full problem description. 1. In the circuit shown, the battery supplies 0.50 A of current. The current through bulb A is 0.15 A. Find the current through bulbs B and C. 2. In this circuit, the current through bulb A is 0.20 A, while that through bulb D is 0.35 A. All bulbs are identical. (A) For the s

Circuit drawings

1. Draw a circuit involving bulbs and a battery as follows: Bulb A and bulb B are in series. The A/B combination is in parallel with bulb C. The battery is in parallel with bulb C. Rank the bulbs in terms of brightness, from brightest to least bright. 2. Draw a circuit with bulbs and a battery as follows: Bulb A and bulb B a

Simple Circuits

At what frequency would a 6.0mH inductor and a 10uF capacitor have the same reactance? b) What would the reactance be? c) Show that this frequency would be the natural frequency of an oscillating circuit with the same L and C? Please explain this problem with the solution.

Electrical Networks

(See attached file for full problem description) --- - Determine the loop circuits in the electrical network shown in the diagram... ---

Network Flow Problem

(See attached file for full problem description) --- - Determine the general flow pattern in the street network shown in the diagram. ---

Microelectric Circuits 10

Please check my work and if incorrect give me the correct answer Please refer to the problem stated in the attached file. (For the circuit shown below, beta = 80. What is the value of Ic?) My solution is: Beta=80 Vbe=.7 Solve for Ic Step one: Vbb=+15*Rb2/(Rb1+Rb2)=15*50/(100+50)=+5 step two Rbb=Rb1//Rb2=(100*50)

Microelectric Circuits 8

Please check my work and if incorrect give me the correct answer Please refer to the problem stated in the attached file. (For the full-wave rectifier circuit shown below, the supply voltage is 18-V rms sinusoidal, Vdo is approximately 0.7V and R=120. What is the value for PIV?) This is my solution: Piv=2Vs-Vd 2*18sq

Circuit Example Problem

Use the circuit shown below to design an inverting amplifier having a gain of -8 and an input resistance of 120 k ohms. Give the values of R1 and R2. See attached file for full problem description.

Designing a logic circuit

Require a logic circuit designing for the attached solution, as much help as possible please as i am lost. The problem does not specify, what valves are a hazardous system, it is a closed system that serves no purpose as far as i can see. I have not studied any thermofluid systems as yet, it seems too much of a jump in kno

Magnetic Balance: Force on a current carrying conductor

The circuit shown below is used to make a magnetic balance to weigh objects. The mass m to be measured is hung from the center of the bar that is in a uniform magnetic field of 1.50 T, directed towards the plane of the figure. The horizontal bar is 60 cm long. It is connected to the battery by thin vertical wires that can suppor

Circuits with capacitors

There is an attachment of what the problem is. Consider the circuit shown in Figure 21-45, where R1 = 17 and R2 = 6.0 (see diagram in attachment) The capacitor is 45 microFarads and the battery is 9.0V a) Find the current flowing through the battery immediately after the switch is closed. b) Find the current in the batt

Network flow

Hi Consider any graph G with edge capacities, a source s, and a sink t. Suppose the maximum flow from s to t is greater than 0, so there is a path from s to t. Then there always exists an edge so that increasing the capacity on the edge increases the maximum flow from s to t. Is Answer True or False Thanks

Resonance

1. An inductor and capacitor are used to make a resonant circuit.The inductor has a winding resistance that is relatively small compared with its reactance. Explain why a series connection and a parallel connection of the inductor and capacitor produce slightly different resonant frequencies in some detail. 2. A 50nF capacito

Integrated Circuits, Microprocessors, and Chip Sets

Please address: 1. The advantage of computer simulations of integrated circuits and how simulation techniques are an example of scientific methods 2. How the computer design tools facilitate the coordination of design and manufacturing.

Derive expression and solve v and vout in polar

(See attached file for full problem description) --- Refer to diagram (attached) 1.Derive an algebraic expression for the transfer function of the circuit assuming that no external load is connected between terminals A&B. Simplify the expression as far as possible but do not attempt to rationalise it. Refer to the two rea

Circuit variable problem

One method of checking calculations in volving interconnected circuit elements is to see that the total power delivered equals the total power absorbed... Please see attached.

Transient Power Analysis in Electric Circuits

The voltage and current at the terminals of the circuit elements in Fig 1.5 are zero for t<0 nad t<40s. In the interval between 4 and 40s the expressions are: (a) At what instant of time is the power being delivered to the circuit element maximum? (b) What is the power at the time found in part (a) (c) At what instant of t

Circuits problem

In electronic circuits it is not unusual to encounter currents in the microamperage range. Assume a 20 micro amp current, due to the flow of electrons. a) What is the average number of electrons per second that flow past a fixed reference cross section that is perpendicular to the direction of flow. b) Compare the size o

Circuit variable problem

A current of 1400 A exits in a rectangular (0.6 X 9.0)cm copper bus bar. The current is due to free electrons moving through the bus bar at an average velocity of v meters/second. If the concentration of free electrons is 10^29 electrons per cubic meter and if they are uniformly dispersed throughout the bus bar, then what is th