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1. Three resistors R, R2, and R3 are connected in series and to a 120-volt source. If R; = 2R1, R3 = 3R1, and the total power taken by the circuit is 200 watts, calculate (a) the resistance of each resistor, (b) the power in each resistor. Ans. (a) 12 0, 24 Q, 36 n; (b) 33.33 W, 66.67 W, 100 W

1. Three resistors R, R2, and R3 are connected in series and to a 120-volt source. If R; = 2R1, R3 = 3R1, and the total power taken by the circuit is 200 watts, calculate (a) the resistance of each resistor, (b) the power in each resistor. Ans. (a) 12 0, 24 Q, 36 n; (b) 33.33 W, 66.67 W, 100 W

Physics for Scientists and Engineers with Modern Physics
Physics for Scientists and Engineers with Modern Physics
10th Edition
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter26: Current And Resistance
Section: Chapter Questions
Problem 38AP
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5. Three resistors A, B, and C are connected in series to a 117-volt source. If Ra = 64 ohms, and E = 40 volts when the current is 0.5 amp, calculate the resistances R₂ and Rc.
UNIVERSITY OF CEBU - MAIN EXPANDED TERTIARY EDUCATION EQUIVALENCY AND ACCREDITATION PROGRAM ELECTRICAL ENGINEERING DEPARTMENT PHYS 2A Activity No. 3 Name: Year Level: Instruction: Solve the following problems carefully with complete solutions. Correct answer without a solution is wrong. 1. Three resistors R1, R2, and R3 are connected in series and to a 120-volt source. If R2 = 2R1, R3 = 3R1, and the total power taken by the circuit is 200 watts, calculate (a) the resistance of each resistor, (b) the power in each resistor. Ans. (a) 12 0, 24 0, 36 N; (b) 33.33 W, 66.67 W, 10 w 2. Three resistors A, B, and Care connected in parallel and take a total of 7.9 A. Resistor A takes 2.5 A and has a resistance of 48 Q; also, the current through B is twice as much as that through C. Calculate (a) ls and lc, (b) the line voltage, (c) Rg and Rc. Ans. (a) 3.6 A, 1.8 A; (b) 120 V; (c) 33.33 Q, 66.670 3. The following data are given in connection with the series - parallel circuit of Figure 1; E = 97.5 volts, R = 18 0, R2 = 9 0, R3 = 16 O, R4 = 14 0, Rs = 7 0, 12 = 2.5 amp. Calculate (a) the resistance of R6, (b) the total equivalent resistance of the circuit, (c) the total power. Ans. (a) 28 0; (b) 26 N; (c) 365.63 W Figure 1 4. Two resistors RA = 1.95 Q and Re = 0.05 Q are connected in parallel and take a total current of 50A. What is the current through each resistor? Ans. 1.25 A, 48.75 A 5. Three resistors A, B, and C are connected in series to a 117-volt source. If Ra = 64 ohms, and Eg = 40 volts when the current is 0.5 amp, calculate the resistances Rg and Rc. Ans. 80 Q, 900
Transcribed Image Text:UNIVERSITY OF CEBU - MAIN EXPANDED TERTIARY EDUCATION EQUIVALENCY AND ACCREDITATION PROGRAM ELECTRICAL ENGINEERING DEPARTMENT PHYS 2A Activity No. 3 Name: Year Level: Instruction: Solve the following problems carefully with complete solutions. Correct answer without a solution is wrong. 1. Three resistors R1, R2, and R3 are connected in series and to a 120-volt source. If R2 = 2R1, R3 = 3R1, and the total power taken by the circuit is 200 watts, calculate (a) the resistance of each resistor, (b) the power in each resistor. Ans. (a) 12 0, 24 0, 36 N; (b) 33.33 W, 66.67 W, 10 w 2. Three resistors A, B, and Care connected in parallel and take a total of 7.9 A. Resistor A takes 2.5 A and has a resistance of 48 Q; also, the current through B is twice as much as that through C. Calculate (a) ls and lc, (b) the line voltage, (c) Rg and Rc. Ans. (a) 3.6 A, 1.8 A; (b) 120 V; (c) 33.33 Q, 66.670 3. The following data are given in connection with the series - parallel circuit of Figure 1; E = 97.5 volts, R = 18 0, R2 = 9 0, R3 = 16 O, R4 = 14 0, Rs = 7 0, 12 = 2.5 amp. Calculate (a) the resistance of R6, (b) the total equivalent resistance of the circuit, (c) the total power. Ans. (a) 28 0; (b) 26 N; (c) 365.63 W Figure 1 4. Two resistors RA = 1.95 Q and Re = 0.05 Q are connected in parallel and take a total current of 50A. What is the current through each resistor? Ans. 1.25 A, 48.75 A 5. Three resistors A, B, and C are connected in series to a 117-volt source. If Ra = 64 ohms, and Eg = 40 volts when the current is 0.5 amp, calculate the resistances Rg and Rc. Ans. 80 Q, 900
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