A real battery is not just an emf. We can If model a real 1.5 V battery as a 1.5 V emf in series with a resistor known as the “internal resistance,” as shown in Figure P23.55. A typical battery has 1.0 Ω internal resistance due to imperfections that limit current through the battery. When there’s no current through the battery, and thus no voltage drop across the internal resistance, the potential difference between its terminals is 1.5 V. the value of the emf. Suppose the terminals of this battery are connected to a 2.0 Ω resistor. Figure P23.55 a. What is the potential difference between the terminals of the battery? b. What fraction of the battery’s power is dissipated by the internal resistance?
A real battery is not just an emf. We can If model a real 1.5 V battery as a 1.5 V emf in series with a resistor known as the “internal resistance,” as shown in Figure P23.55. A typical battery has 1.0 Ω internal resistance due to imperfections that limit current through the battery. When there’s no current through the battery, and thus no voltage drop across the internal resistance, the potential difference between its terminals is 1.5 V. the value of the emf. Suppose the terminals of this battery are connected to a 2.0 Ω resistor. Figure P23.55 a. What is the potential difference between the terminals of the battery? b. What fraction of the battery’s power is dissipated by the internal resistance?
A real battery is not just an emf. We can If model a real 1.5 V battery as a 1.5 V emf in series with a resistor known as the “internal resistance,” as shown in Figure P23.55. A typical battery has 1.0 Ω internal resistance due to imperfections that limit current through the battery. When there’s no current through the battery, and thus no voltage drop across the internal resistance, the potential difference between its terminals is 1.5 V. the value of the emf. Suppose the terminals of this battery are connected to a 2.0 Ω resistor.
Figure P23.55
a. What is the potential difference between the terminals of the battery?
b. What fraction of the battery’s power is dissipated by the internal resistance?
Checkpoint 4
The figure shows four orientations of an electric di-
pole in an external electric field. Rank the orienta-
tions according to (a) the magnitude of the torque
on the dipole and (b) the potential energy of the di-
pole, greatest first.
(1)
(2)
E
(4)
What is integrated science.
What is fractional distillation
What is simple distillation
19:39 ·
C
Chegg
1 69%
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The compound beam is fixed at Ę and supported by rollers at A and B. There are pins at C and D. Take
F=1700 lb. (Figure 1)
Figure
800 lb
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F
600 lb
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D
E
C
BO
10 ft 5 ft 4 ft-—— 6 ft — 5 ft-
Solved Part A The compound
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Problem
A-12
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kip
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E
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Những kết quả này có
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There are pins at C and D To F-1200 Egue!)
Chegg
Solved The compound b...
Có Không ☑
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Chegg
10
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Chapter 23 Solutions
Student Workbook for College Physics: A Strategic Approach Volume 1 (Chs. 1-16)
Human Physiology: An Integrated Approach (8th Edition)
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