Three resisters are used in a circuit, with resistances R1 = R, R2 = 2R, and R3= 3R, where R = 7.5 N. (a) Input an expression for the equivalent resistance, R, in term of the variable R if the resistors are connected in series. (b) Input an expression for the equivalent resistance, R, in term of the variable R if the resistors are connected in parallel. (c) If AV = 1 V is applied to the series circuit how much current passes through it in A? (d) If AV = 1 V is applied to the parallel circuit how much current passes through it in A?

Three resisters are used in a circuit, with resistances R1 = R, R2 = 2R, and R3= 3R, where R = 7.5 N. (a) Input an expression for the equivalent resistance, R, in term of the variable R if the resistors are connected in series. (b) Input an expression for the equivalent resistance, R, in term of the variable R if the resistors are connected in parallel. (c) If AV = 1 V is applied to the series circuit how much current passes through it in A? (d) If AV = 1 V is applied to the parallel circuit how much current passes through it in 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...

See similar textbooks

Similar questions

Find the values of I2 and I3 that will make the output voltage (OUT) to 0.5v. Describe the approach taken in solving the problem. Indicate the range of I2 and I3 used to solve the problem.Describe the relationship between I2 and I3 with respect to the output voltage.
For R1=55, R2=D125, R33D135, R4=15, R5=40, R63D90 and V1=4 V in the shown figure, use circuit reduction and current/voltage division rules to calculate the following: R6 R1 R5 R3 R2 V1 V2 R4 V13= V2=
Two batteries are connected in parallel delivering power to a power resistor. The first battery has an open circuit voltage of 12.6 V and an internal resistance of 0.2 ohm. The second battery has an open circuit voltage of 12.2 V and an internal resistance of 0.3 ohm. Find the maximum power delivered to the load resistance.
Three resistors of 50 N, 100 N and an unknown resistance R are connected in parallel and the combination is connected to a 25 V source. If the total current delivered by the source is 1 A, determine the following: A. The value of R (Ans. R = 100 2) B. The current in each resistor (Ans. I1 = 0.5 A, I2 = I3 = 0.25 A) C. Which resistor dissipates the highest power? Show your solution. (Ans. R1)
A variable resistive load has a 10-10092 range, and is connected across the load terminals of a circuit. This circuit has a Thevenin voltage and resistance of 150 V and 25 N, respectively. What should be the resistance of the variable resistive load so that it will consume 80% of the max power that this circuit can deliver? (Round-off to two decimal places)
To measure the change in resistance of the gage(s) and indicate the location of the gauge on the beam, construct the Wheatstone bridge circuit. Calculate the Wheatstone bridge output if the gauge indicates a strain of 4000.then,Evaluate how can the number of strain gauges affects your measurement result. Justify your response with a calculation and a diagram showing the gage's placement on the beam.
What is the current read by the ammeter in the circuit below? Let R1 = 1 kiloohm, R2 = 2 kiloohm, R3 = 3 kiloohm, and the emf of the ideal source is 5 volts. Input R1, R2, and R3 for resistors Ri, R2, and R3 respectively. Input E for the emf E. Use context clues to figure out if you need to input a numerical value, variable, word, etc. All numerical answers should be in three significant figures. R1 R2 R3 + First we calculate the current across each resistor. From Ohm's law, we arrive at a general formula for current: | =
If you wanted to measure the voltage of a resistor with a voltmeter, would you introduce the voltmeter to be in series or in parallel to that resistor? Explain. What about for an ammeter?
Which of the following statements are correct for the circuit below? Thanks to the capacitors I – C1 and C2, the voltage gain of the circuit increases. II – Capacitors C1 and C2 are coupling capacitors and provide an isolation function between AC and DC voltages in the circuit. Thanks to the III – RE resistor, the voltage gain of the circuit increases. Thanks to the IV – RE resistor, the stability of the circuit increases. The V – C3 Capacitor is a bypass capacitor and prevents the loss of voltage gain. Capacitor VI – C3 is a coupling capacitor and has no effect on the voltage gain in the circuit. VII – As the value of the source internal resistance Rs increases, the voltage gain decreases. VIII – The voltage gain decreases as the value of any RL load to be added to the circuit increases
O Given the information appearing in the Figure, Fird the level of resistance for Ri e R3. RI 3 o 14V Rg
Now let's try using a pack of AA batteries (1.2 V output voltage and 0.2 Ohm internal resistance each) to replace the lead-acid battery. In order to match the car lead-acid battery, first, 10 such AA batteries need to be connected in series to form a 12V cell, while 50 such cells need to be connected in parallel (as shown in picture above; the total of 500 AA batteries are used). Find the power that is supplied to the same "car starter" using this pack of AA batteries. (Hint: for the second question, you need to find the total voltage and the internal resistance of the whole pack; you also need to find the resistance of the "car starter"; this can be done using the data of the first part of this problem)
Question 3 (a) Briefly explain what is the per-unit systero. (b) A resistance of 60n is selected as the base resistance in a circuit consists of three resistors. If R, =1002, R, =30002 and %3D R, = 200 calculate the per-unit vahue of each resistance. %3D (c) A power of, P-25KW and a voltage of, E-2400V are selected as the base power and base voltage of a power system respectively. Calculate the value of the base impedance, Z, and the base current, I,. (d) A resistor bas a per-nnit value of 5.3. Given the base power is P=250KW, and the base voltage is E,-12470V, calculate the ohmic value (actual value) of the resistor. (e) A 4000 resistor caries a cucrent of 60A. Given the base valne of voltage, E, 4KV, the base value of power, P, 500KTF, the base value of current, I, =125.4, and the base value of resistor, 2, = 320 calculate the following: i The per-unit resistance. ii. The per-unit current. ii. The per-unit voltage across the resistor. iv. The per-unit power.