In the circuit shown, the resistance R₁ = R₂ = R3 R4 R5 = 15.0 22. A voltmeter measures the potential difference across the battery. When the switch is in position 1, the voltmeter measures V₁ = 11.7 V. When the switch is in position 2, the voltmeter measures V₂ = 11.2 V. What is the emf & of the battery? E = What is the battery's internal resistance r? r = V Ω R₂ www R₁ 1 S O 2 R₁ www ww www R₂ R₁

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Chapter1: Units, Trigonometry. And Vectors
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In the circuit shown, the resistance
R₁ = R₂ = R3 R4 = R5 = 15.0 Ω. Α voltmeter
measures the potential difference across the battery. When
the switch is in position 1, the voltmeter measures
V₁ = 11.7 V. When the switch is in position 2, the
voltmeter measures V₂
11.2 V.
What is the emf & of the battery?
E =
=
r =
=
What is the battery's internal resistance r?
V
Ω
R₂
www
www.
R₁
S
O
2
R₁
www
www
www
R₂
R₁
Transcribed Image Text:In the circuit shown, the resistance R₁ = R₂ = R3 R4 = R5 = 15.0 Ω. Α voltmeter measures the potential difference across the battery. When the switch is in position 1, the voltmeter measures V₁ = 11.7 V. When the switch is in position 2, the voltmeter measures V₂ 11.2 V. What is the emf & of the battery? E = = r = = What is the battery's internal resistance r? V Ω R₂ www www. R₁ S O 2 R₁ www www www R₂ R₁
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