In the circuit of Fig. E26.15 , each resistor represents a light bulb. Let R 1 , = R 2 = R 3 = R 4 = 4.50 Ω and ε = 9.00 V. (a) Find the current in each bulb, (b) Find the power dissipated in each bulb. Which bulb or bulbs glow the brightest? (c) Bulb R 4 is now removed from the circuit, leaving a break in the wire at its position. Now what is the current in each of the remaining bulbs R 1 , R 2 , and R 3 ? (d) With bulb R 4 removed, what is the power dissipated in each of the remaining bulbs? (c) Which light bulb(s) glow brighter as a result of removing R 4 ? Which bulb(s) glow less brightly? Discuss why there are different effects on different bulbs. Figure E26.15
In the circuit of Fig. E26.15 , each resistor represents a light bulb. Let R 1 , = R 2 = R 3 = R 4 = 4.50 Ω and ε = 9.00 V. (a) Find the current in each bulb, (b) Find the power dissipated in each bulb. Which bulb or bulbs glow the brightest? (c) Bulb R 4 is now removed from the circuit, leaving a break in the wire at its position. Now what is the current in each of the remaining bulbs R 1 , R 2 , and R 3 ? (d) With bulb R 4 removed, what is the power dissipated in each of the remaining bulbs? (c) Which light bulb(s) glow brighter as a result of removing R 4 ? Which bulb(s) glow less brightly? Discuss why there are different effects on different bulbs. Figure E26.15
In the circuit of Fig. E26.15, each resistor represents a light bulb. Let R1, = R2 = R3 = R4 = 4.50 Ω and ε = 9.00 V. (a) Find the current in each bulb, (b) Find the power dissipated in each bulb. Which bulb or bulbs glow the brightest? (c) Bulb R4 is now removed from the circuit, leaving a break in the wire at its position. Now what is the current in each of the remaining bulbs R1, R2, and R3? (d) With bulb R4 removed, what is the power dissipated in each of the remaining bulbs? (c) Which light bulb(s) glow brighter as a result of removing R4? Which bulb(s) glow less brightly? Discuss why there are different effects on different bulbs.
A wire of resistance 5.0 ohm is connected to a battery whose emf is 2.0 V and whose internal resistance is 1.0. In 2.0 min, how much energy is (a) transferred from chemical form in the battery, (b) dissipated as thermal energy in the wire, and (c) dissipated as thermal energy in the battery?
In (Figure 1), the battery has negligible internal resistance and EMF = 44.0 V. R1 = R2 = 3.40 Ω and R4 = 3.70 Ω. What must the resistance R3 be for the resistor network to dissipate electrical energy at a rate of 275 WW?
An uncharged capacitor and a resistor are connected in series to a source of emf. If ε = 9.00 V, C = 20.0 µF, and R = 100 Ω, find (a) the time constant of the circuit, (b) the maximum charge on the capacitor, and (c) the charge on the capacitor after one time constant.
Chapter 26 Solutions
University Physics with Modern Physics (14th Edition)
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How To Solve Any Resistors In Series and Parallel Combination Circuit Problems in Physics; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=eFlJy0cPbsY;License: Standard YouTube License, CC-BY