Principles Of Electric Circuits
10th Edition
ISBN: 9780134879482
Author: Floyd, Thomas L.
Publisher: Pearson,
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Chapter 5, Problem 47P
To determine
Design the variable voltage divider to provide an output voltage adjustable from minimum of 10 V to a maximum of 100 V.
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Chapter 5 Solutions
Principles Of Electric Circuits
Ch. 5 - (a) Show how you would rewire the protoboard in...Ch. 5 - How is the circuit changed when pin 2 and pin 3 in...Ch. 5 - Determine the total resistance in Figure 5-10(a)...Ch. 5 - What is the total resistance for the following...Ch. 5 - Determine the value of R4 in Figure 5-12 if the...Ch. 5 - Find RT for three 1.0 k resistors and two 720 ...Ch. 5 - What is the value of R2 if the highest current is...Ch. 5 - Determine V3 if the polarity of VS2 is reversed in...Ch. 5 - Starting with Equation 5-5, prove that the...Ch. 5 - What is the power in the circuit of Figure 5-48 if...
Ch. 5 - Determine the minimum power rating required for...Ch. 5 - Assume that R1 is shorted In Figure 5-61. What...Ch. 5 - A series circuit can have more than one path for...Ch. 5 - The total resistance of a series circuit can be...Ch. 5 - If two series resistors are different sizes, the...Ch. 5 - If two series resistors are different sizes, the...Ch. 5 - If three equal resistors are used in a voltage...Ch. 5 - There is no valid electrical reason for installing...Ch. 5 - Kirchhoffs voltage law is valid only if a loop...Ch. 5 - Prob. 8TFQCh. 5 - Prob. 9TFQCh. 5 - If point A in a circuit has a voltage of +10 V and...Ch. 5 - Two equal-value resistors are connected in series...Ch. 5 - Prob. 2STCh. 5 - Prob. 3STCh. 5 - When one of four series resistors is removed from...Ch. 5 - Prob. 5STCh. 5 - A 9 V battery is connected across a series...Ch. 5 - While putting four 1.5 V batteries in a four-cell...Ch. 5 - If you measure all the voltage drops and the...Ch. 5 - There are six resistors in a given series circuit...Ch. 5 - A series circuit consists of a 4.7 k, a 5.6 k, and...Ch. 5 - Which of the following series combinations...Ch. 5 - The total power in a certain circuit is 1 W. Each...Ch. 5 - When you connect an ammeter in a series-resistive...Ch. 5 - While checking out a series-resistive circuit, you...Ch. 5 - With a 10 V voltage source connected between...Ch. 5 - For the conditions described in Question 1, the...Ch. 5 - When the switches are in position 1 and a short...Ch. 5 - When the switches are in position 2 and a short...Ch. 5 - If the current shown by one of the milliammeters...Ch. 5 - If the source voltage decreases, the current...Ch. 5 - If the current through R1 increases as a result of...Ch. 5 - If the switch is thrown from position A to...Ch. 5 - If the switch is thrown from position B to...Ch. 5 - If the switch is thrown from position C to...Ch. 5 - If R1 is changed to 1.2 k, the voltage from A to B...Ch. 5 - If R2 and R3 are interchanged, the voltage from A...Ch. 5 - If the source voltage increases from 8 V to 10 V,...Ch. 5 - Connect each set of resistors in Figure 563 in...Ch. 5 - Determine the groupings of resistors in Figure 564...Ch. 5 - Determine the nominal resistance between pins 1...Ch. 5 - Determine the nominal resistance between pins 2...Ch. 5 - On the double-sided PC board in Figure 565,...Ch. 5 - Prob. 6PCh. 5 - Prob. 7PCh. 5 - Calculate RT for each circuit of Figure 566....Ch. 5 - What is the total resistance of twelve 5.6 k...Ch. 5 - Six 56 resistors, eight 100 resistors, and two...Ch. 5 - Prob. 11PCh. 5 - You have the following resistor values available...Ch. 5 - Find the total resistance in Figure 566 if all...Ch. 5 - What is the total resistance from A to B for each...Ch. 5 - What is the current through each resistor in a...Ch. 5 - The current from the source in Figure 569 is 5 mA....Ch. 5 - Show how to connect a voltage source and an...Ch. 5 - Using 1.5 V batteries, a switch, and three lamps,...Ch. 5 - What is the current in each circuit of Figure 570?...Ch. 5 - Determine the voltage drop across each resistor in...Ch. 5 - Three 470 resistors are connected in series with...Ch. 5 - Four equal-value resistors are in series with a 5...Ch. 5 - What is the value of each resistor in Figure 571?...Ch. 5 - Determine VR1, R2, and R3 in Figure 5-72. Figure...Ch. 5 - For the circuit in Figure 573 the meter reads 7.84...Ch. 5 - Determine the current measured by the meter in...Ch. 5 - Refer to Figure 5-75. Assume the green LED drops...Ch. 5 - Refer to Figure 5-76. Assume there is a 2.0 V drop...Ch. 5 - Series aiding is a term sometimes used to describe...Ch. 5 - The term series opposing means that sources are in...Ch. 5 - Determine the total source voltage in each circuit...Ch. 5 - Prob. 32PCh. 5 - Five resistors are in series with a 20 V source....Ch. 5 - Determine the unspecified voltage drop(s) in each...Ch. 5 - In the circuit of Figure 5-79, determine the...Ch. 5 - Find R1, R2, and R3 in Figure 580. Figure 580Ch. 5 - Determine the voltage across R5 for each position...Ch. 5 - The total resistance of a circuit is 560 . What...Ch. 5 - Determine the voltage between points A and B in...Ch. 5 - Determine the voltage with respect to ground for...Ch. 5 - Determine the minimum and maximum voltage from the...Ch. 5 - What is the voltage across each resistor in Figure...Ch. 5 - Prob. 44PCh. 5 - If there are 10 V across R1 in Figure 5-86, what...Ch. 5 - Prob. 46PCh. 5 - Prob. 47PCh. 5 - Five series resistors each handle 50 mW. What is...Ch. 5 - If you double the voltage across a resistor, by...Ch. 5 - If the total resistance of a circuit is halved,...Ch. 5 - What is the total power in the circuit in Figure...Ch. 5 - The following W resistors are in series: 1.2 k,...Ch. 5 - Find RT in Figure 587.Ch. 5 - A certain series circuit consists of a W...Ch. 5 - Determine the voltage at each point with respect...Ch. 5 - In Figure 589, how would you determine the voltage...Ch. 5 - Determine the voltage at each point with respect...Ch. 5 - In Figure 589, what is VAC?Ch. 5 - In Figure 589, what is VCA?Ch. 5 - A string of five series resistors is connected...Ch. 5 - By observing the meters in Figure 590, determine...Ch. 5 - What current would you measure in Figure 590(b) if...Ch. 5 - Table 52 shows the results of resistance...Ch. 5 - You measure 15 k between pins 5 and 6 on the PC...Ch. 5 - In checking out the PC board in Figure 591, you...Ch. 5 - The three groups of series resistors on the PC...
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- A series circuit contains the following values of resistors: R1=510R2=680R3=390R4=750 Assume a source voltage of 48 V. Use the general voltage divider formula to calculate the voltage drop across each of the resistors. E1=VE2=VE3=VE4=Varrow_forwardA parallel Circuit contains the following resistor values: R1=270KR2=360KR3=430KR4=100KlT=0.006A Find thefollowingmissingvalues: RT=I1=Al2=Al3=Al4=Aarrow_forward28a) The measuring range of a MC ammeter is found to be (0 – 75) mA. This low range ammeter is connected with a shunt resistance of 10 mΩ, in order to measure current values up to 90A. Determine the resistance of the ammeter.arrow_forward
- Suggest 3 Capstone Design Project Ideas that is limited to Electrical Engineering.If there's an involvement of other Engineering Field, it still must be more on Electrical, like 70 per cent to 90 per cent of it must be electricalarrow_forwardMeasure current and voltage of : R1= 10KΩ, R2= 1000 Ω, R3=2,7K, and R4=2,2K. Using current divider rule.arrow_forwardA DC voltage of 2,5 V is measured with a D’Arsonval micro-ammeter with the range of 500 uA and an internal resistance of 500 Ω. The resistance of the lamented needed to extend the range of the measuring device must be at least... 0,555 kΩ 4,5 kΩ 4,5 Ω 55,5 Ωarrow_forward
- Design a multirange ammeter to provide an ammeter with a current range of 0-1mA, 0-10mA, 0-50mA and 0-100mA. A d’Arsonval movement with an internal resistance of 100Ω and full-scale current of 50μA is used. [Ans: 5.26Ω, 0.51Ω, 0.1Ω, 0.05Ω]arrow_forwardThe internal resistance of an ideal voltage source is _____. * A. Infinite B. Equal to the load resistance C. Zero D. To be determinedarrow_forwardTrue or False The voltmeter is always connected in parallel in the circuit, as well as the ammeter.Single choice.arrow_forward
- The maximum resistance made by combining these resistors (450 Ω, 650 Ω and 500 Ω) is 1600 Ω and the minimum is that 174 Ωarrow_forwardTwo identical zinc-carbon batteries are available. When connected in series, they supply 0.5 ampere to a 4-ohm resistor. When connected in parallel, they supply 0.4 ampere to a 5-ohm resistor. Determine the emf and the internal resistance of each batteryarrow_forwardCompute total resistance (series-parallel), total current (ohms law), voltage at R1 and R4 (using voltage divider) and current in R4 (using current divider).arrow_forward
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