_PreLab 4-5

Create a general procedure to solve any circuit DC circuit with any number of resistors.

Make a DC and AC Analysis of the circuits below

The resistance R and a 2 μF capacitor are connected in series across 200-V dc supply. Across the capacitor is a neon lamp that strikes at 120 volts. Calculate the value of R to make the lamp strikes 5 seconds after the switch has been closed.

9. The initial rate of current rise in an R-L circuit is 800 amps per sec when 453 volts is suddenly impressed. What is the inductance of the circuit?

A 750-ohm resistor, an uncharged 1.50 uF capacitor, and a 8.00-V emf are connected in series. (a) What is the current after one time constant? (b) What is the voltage on the capacitor after one time constant?

6. The main difference between resistance R and capacitive reactance X, is that (a) Xc is the same for both DC and AC signals, where R depends on frequency of the AC signal (b) R is the same for both DC and AC signals, where X depends on the frequency of an AC signal (c) R is measured in ohms and X is measured in farads (d) None of the above

%3D ) Drurde (l0o1102 and (o

2. Consider the following double-loop electrical circuit in the figure. Based on determine: Based on the figure above determine: (a) the electric current through each resistor (b) potential difference between ends B and E (c) potential difference between the ends of C and F   Solve subparts a,b,c with the step thank u

multirange ammeter was designed using direct method to give three scales with Rsh1= 0.001285989 0, Rsh2=0.000562552 0, and Rsh3=0.000100001 Q. The d'Arsonval meter has Rm=6 Q and full scale current of 1.5 mA. Find the ranges.? 8 (Ctrl) -

what is kvl and kcl in circuit theory ?

With V1, voltage peak to peak is 10 volts, R1=200 Ohm, R2=1000 Ohm and C1= 300 nF. Find Vx, voltage across the the capacitor, C1 and R2 when the frequency is 1000 Hz and 10000 Hz

What is electrical engineering

A dc generator and a battery are connected to a resistive load RL in the figure below. For each, determine the value of RL for maximum power transfer to RL. Next is to determine RL to 75% efficiency

If the resistors used for charging and discharging were the same, the charging anddischarging waveform would be ________.a. Symmetricalb. Nonsymmetrical

Q1.)  In the following DC circuits, when the unit of voltage U is V, the unit of controlled source current is A . find the voltage U in the circuit

Q4

150 100 + VA- a -4V AVA -7V 81. B b Figure 2 shows a simplified model of a gas-discharge lamp. One characteristic of these lamps is that they exhibit negative resistance; in other words, as current increases the voltage drops further, making such lamps inherently unstable. As such, a current-limiting ballast is required. For the connection shown in the figure: 1. Find the equivalent Thevenin circuit of the lamp. 2. Find the ballast resistance needed to limit the current drawn from a 24-volt source to 6 amperes.

7. The initial rate of current rise in an R-L circuit is 350 amp per sec when 220 volts is suddenly impressed. What is the inductance of the circuit?

the non-inductive resistance of kelvin double bridge are set at 100ON each, the standard resistance is set at 0.10020 and the low resistance 0.0000122 was very low. determine the unknown resistance

In a series circuit with the following devices to a 230volts 60Hz supply with a resistor in the range of 300 ohms and 990 ohms. What are the steps in calculating the impedance ...

What is the value of the average voltage at the output of the circuit in the figure, knowing that:  Voltage at the transformer output is equal to 5 Vac and the four diodes are from the 1N4001 family.

Which of the following statements regarding circuits are true? To find resistance in a parallel circuit, you must sum the individual resitances The direction of conventional current is the direction of positive charge flow. In a circuit, electrons flow from high potential energy (at the negative terminal) to low potential energy (at the positive terminal). When electricity is passed through a lightbulb, the electrons are 'used up' by the bulb. All voltages in a loop sum to 12V The current that flows into a resistor is the same as the current that flows out. To 'short circuit' something means there is an alternate path of less resistance for the current to flow. Switching on a light happens immediately because electrons move from the power source to the bulb incredibly quickly. A 'kilowatt-hour' is a unit of power, not energy.

A 150V moving iron volt meter intended for 50Hz has an inductance of 0.7H and a resistance of 3K ohm. Find the series resistance required to extend the range of instrument to 300V if this 300V - 50Hz instrument used to measure dc voltage find the dc voltage when the scale reading is 200V

MAT LAB course

(Basic Electrical Engineering) A series circuit consisting of a 13-ohm resistor, 0.05 H inductor and a 10-microfarad capacitor is connected across a 100V. Determine the frequency of the supply if the current flowing is 5A. Show complete solution and limit your answer jnto three decimal places.

Based on Figures la,1b and 1c and RLC elements, write a discussion on voltage-current relations and power factor.

Exe: The single-phase bridge rectifier has an RL Load and an ac source, with R = 10Ω andL = 10mH. The peak value of the source is Vm = 100V at 60 Hz. The expressions of voltage andcurrent outputs are:(a) Determine v0(t) and i0(t) with two ac terms (n=2 and 4)(b)  Determine the power absorbed by the load.

A series circuit consists of a 66.2-µF capacitor and a variable resistor. For what two values of resistance will the power taken by the circuit be 172.8 W if the impressed emf is 120 V, 60-cycle?