7. In Fig. 2.41, the potential of point A is -30 V. Using Kirchhoff's voltage law, find (a) value of V and(b) power dissipated by 5 2 resistance. All resistances are in ohms.[100 V; 500 W]30 V412wwFig. 2.41ww3www

Answered: Image /qna-images/answer/e72d2465-3b5a-4a79-9da6-4d246d5c8fd6.jpg

Answered: VA In Fig. the potential of point A…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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8. The resistance of an 1 aluminum wire at 29°C is 20 ohms. Determine its resistance at 100°C. if the inferred absolute temperature is -236°C. * O 26.593 ohms O 24.359 ohms 25.359 ohms 23.539 ohms
None
Which of the following are true?i. Ohm’s law utilizes resistance, current, and voltage.ii. Ohm’s law was named after the mathematician and physicist George Sian Ohm.iii. Ohm’s law is the most powerful mathematical tool used in the study of electricity.iv. Ohm’s law is useful in analyzing circuits. What is the appropriate question for the following:i. to decrease the resistance of electrolysisii. to increase the resistance of alloysiii. to increase the resistance of pure metals
7. Ohm's Law states that, for a steady current, the current in a circuit is total emf acting in the circuit and is proportional to the proportional to the total resistance. 8. is the rate of doing work, or rate of expenditure of energy, and its unit is
Consider the circuit of resistors shown. Find the equivalent resistance Reg • Find the currents ,...,Is through each resistor and the voltages V1,..,Vs across each resistm Find the total power P dissipated in the circuit. R = 62 R:= 42 R=122 R = 392 R=52 E=12V
Example (2): Design d.c voltmeter by using direct method with d'Arsonval meter of 1002 and full scale deflection of 100µA to give the following ranges: 10mV, 1V, and 100V.
You have been provided with the voltage and current data measured for an unknownelectrical element (the measured voltage across the element and the correspondingcurrent measured through the element). Plot this data (by hand or using MS Excel orMatlab) and determine if this element is a resistor. If it is a resistor, what is the resistancevalue of the resistor?
The table shows the values for the current, I, in an electric circuit and the resistance, R, of the circuit. Solve; a. Graph the ordered pairs in the given table of values, with values of I along the x-axis and values of R along the y-axis.Connect the eight points with a smooth curve. b. Does current vary directly or inversely as resistance? Use your graph and explain how you arrived at your answer. c. Write an equation of variation for I and R, using one of the ordered pairs in the table to find the constant of variation. Then use your variation equation to verify the other seven ordered pairs in the table.
Which of the following statement is false regarding the emf? O a. The battery or other emf source always produces the same amount of current regardless of the kind of component/s in the circuit. O b. For a real source of emf, the terminal voltage equals the emf only if no current is flowing through the source. O c. The source of emf supplies a constant potential difference independent of the current in series with an internal resistance. O d. The increase in internal resistance may decrease the terminal voltage. O e. The battery may overheat due to the increased power dissipated by the internal resistance.
A person working on a steel structure while standing on ground. An accident occurred where 6 A pass through the structure to the ground. The structure is grounded by a hemisphere with radius of 0.2 m. Assume the man's body resistance is 2000 ohm and soil resistivity is 100 ohm.m. Calculate the current (in Ampere) through man
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VA In Fig. the potential of point A is-30 V. Using Kirchhoff's voltage law, find (a) value of (b) power dissipated by 5 resistance. All resistances are in ohms. [100 V; 500 W] 12 www ww