1. --') (a) A resistor has four color bands brown, orange, yelow, and Gold. What is its resistance? (b) A 60-W/120V light bulb is comected to 120 V. What is its resistance? 2. n (a) A cylindrical conductor has resistance of Re = 402. If we decrease the radius of the conductor by a factor of 2, while keeping the rest fixed, what is the new resistance? (b) A battery with emf of 12 V, with an internal resistance of 7 = 0.5n, is connected in series with this cylindrical conductor (with the radius reduced). What is its terminal voltage (V = E - Ir)? Keep at least six sig. fig. ) This problem has no partial credit for (b) and (c) if you get a wrong answer 3. to (a) to start with. Six resistors ae connected to a battery (see the figre below). It is known that R1 = 52, R2 = 2542, Rs = 802, R4 = 102, Rs = 6O2, and Re = 102. RI R4. R3 R5 R2 R6 (a) What is the equivalent resistance of the cireuit? If the battery voltage is 48 V and if we ignore its intemal resistance, what is the total current It in the main path (see the figure)? What is the current (13) through R? (b) (e (d What is the current (14) through R? What is the voltage (V) across R?

1. --') (a) A resistor has four color bands brown, orange, yelow, and Gold. What is its resistance? (b) A 60-W/120V light bulb is comected to 120 V. What is its resistance? 2. n (a) A cylindrical conductor has resistance of Re = 402. If we decrease the radius of the conductor by a factor of 2, while keeping the rest fixed, what is the new resistance? (b) A battery with emf of 12 V, with an internal resistance of 7 = 0.5n, is connected in series with this cylindrical conductor (with the radius reduced). What is its terminal voltage (V = E - Ir)? Keep at least six sig. fig. ) This problem has no partial credit for (b) and (c) if you get a wrong answer 3. to (a) to start with. Six resistors ae connected to a battery (see the figre below). It is known that R1 = 52, R2 = 2542, Rs = 802, R4 = 102, Rs = 6O2, and Re = 102. RI R4. R3 R5 R2 R6 (a) What is the equivalent resistance of the cireuit? If the battery voltage is 48 V and if we ignore its intemal resistance, what is the total current It in the main path (see the figure)? What is the current (13) through R? (b) (e (d What is the current (14) through R? What is the voltage (V) across R?

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter12: Electronic Control Devices

Section: Chapter Questions

Problem 14RQ

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