Question #1a. For the circuit shown in Figure 1, the switch is at position #1 for an extended period.Given that the switch is moved to position #2 at time t = 0, calculate the current flowingthrough the 4 k resistor for t> 020 V V()-28 ΚΩwwR₁Figure #1200 μFR₂4 ΚΩb. For the circuit shown in Figure 2, the switch is opened at t=0 after being closed for anextended period of time. Calculate the voltage across the two (2) ohm resistor for t> 0.

Answered: Image /qna-images/answer/3840e915-72ad-4eb6-8448-4cf52ee63802.jpg

Answered: Question #1 a. For the circuit shown in…

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter29: Dc Generators

Section: Chapter Questions

Problem 1PA: You are working as an electrician in a large steel manufacturing plant, and you are in the process...

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In the circuit below, switch S is initially disconnected from points A and B. The switch is then connected to A. What is the current and voltage in the resistors and inductor: a) as soon as the switch is turned on b) long after the key is turned on. The switch is then suddenly disconnected from A and connected to B: c) What is the current in the resistors at that moment? d) What is the voltage in the inductor? e) After that moment, what is the total energy dissipated by the resistors?
= Using Kirchhoff's rules, find the following. (₁ = 70.9 V, 8₂= 60.7 V, and 83 1 E₁ R₂ E₂ 4.00 ΚΩ www R₂ 3.00 ΚΩ d E₁ 2.00 ΚΩ www R₁ (a) the current in each resistor shown in the figure above (b) the potential difference between points c and f 79.1 V.)
What is the value of the R to get the full deflection??
You are working as an electrician in a large steel manufacturing plant, and you are in the process of doing preventive maintenance on a large DC generator. You have megged both the series and shunt field windings and found that each has over 10 M to ground. Your ohmmeter, however, indicates a resistance of 1.5 across terminals S1andS2. The ohmmeter indicates a resistance of 225 between terminals F1andF2. Are these readings normal for this type machine, or is there a likely problem? Explain your answer.
In the following will provide the answers you need to answer the question. Consider the switch is closed at t=0 A) Right after the switch is closed what is I1,I2,I3 B)right after the switch is closed what is the value of delta VL= Va-Vb? C)what is the value of I2 a long while after the switch has been closed?
In Figure, a 20 resistor is connected to a battery. Figure shows the increase of thermal energy Eth in the resistor as a function of time t. The vertical scale is set by Eths =2.50 mJ, and the horizontal scale is set by ts = 4.0 s. What is the electric potential across the battery? 0.20 V 0.15 V 0.30 V 0.10 V 0.25 V R Eh,s Eth (mJ) t (s) ts
B) A source of e.m.f. of 15V supplies a current of 2A for 6 minutes. How much energy is provided in this time? E=P = t 108003
TOPIC: STABILITY Subject to a step input, the voltage drop across the resistor took 696.3103us to reach 13% of its steady value from rest. Determine the time (ms) needed to reach 90% of its steady value from 10% Determine the time (ms) needed to reach 80% of its steady value from 20%
Consider the RC circuit in Figure 2 below. Assuming the switch has been open for a long time before it is closed, fill in a table providing the current through each component and the voltage across each component immediately after the switch is closed, and a very long time after the switch is closed. Next, figure out the time constant for the circuit. (Hint: Assign currents to each branch. Set up the necessary KVL and KCL equations. Eliminate all but one variable to get an equation for just one of the currents. You shouldn’t have to solve this equation to recognize the time constant!)
Electrical engineering
In the figure, 8 = 138 V, R₁ = 10.702, R₂ = 29.402, R3 = 34.3 02, and L = 1.74 H. Immediately after switch S is closed, what are (a) i₁ and (b) i2? (Let currents in the indicated directions have positive values and currents in the opposite directions have negative values.) A long time later, what are (c) i₁ and (d) i2? The switch is then reopened. Just then, what are (e) i₁ and (f) i₂? A long time later, what are (g) i₁ and (h) i₂? (a) Number i (b) Number i (c) Number i (d) Number i (e) Number i Units Units Units Units Units R₁ R$ R₂ L
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.

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