Book edition 1st Edition

Author(s) Paul Peter Urone

Pages 1272 pages

ISBN 9781938168000

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Short Answer

(a) What is the terminal voltage of a large 1.54 v carbon-zinc dry cell used in a physics lab to supply 2.00 a to a circuit, if the cell's internal resistance is $0.100 Ω$ ? (b) How much electrical power does the cell produce? (c) What power goes to its load?

$(a) Terminal voltage, 1.34 v . (b) Electric power produced is 3.08 w . (c) Power that goes to load is 2.68 w .$

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Step by Step Solution

TABLE OF CONTENTS :

TABLE OF CONTENTS

Step 1: Terminal voltage

Carbon zinc dry cell is use as the power source for various proposes. The terminal voltage of carbon zinc dry cell is given by equation,

$V = emf - IR$

Here, emf is the output voltage of the battery, I is the current and R is the resistance.

Step 2: Calculation of the terminal voltage

Given EMF of the carbon zinc dry cell is $E = 1.54 V$

Current, $I = 2 A$

Internal resistance, $r = 0.1 Ω$

(a)

Terminal voltage,

$V = E - Ir = 1.54 V - 2 A + 0.1 Ω = 1.34 V$

Therefore, terminal voltage is, $1.34 V .$

Step3: Calculation of the electric power produced

(b)

Electric power produced,

$Electric power = V \times I = (1.54 V) \times 2 Ω = 3.08 W$

Therefore, electric power produce is, $3.08 W .$

Step 2: Calculation of the electric power output

(c)

Electric power output,

$Load Power = (1.34 V) \times 2 A = 2.68 W$

Therefore, electric power output is, $2 .68 W$ .

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College Physics (Urone)

Answers without the blur.

Short Answer

(a) What is the terminal voltage of a large 1.54 v carbon-zinc dry cell used in a physics lab to supply 2.00 a to a circuit, if the cell's internal resistance is $0.100 Ω$ ? (b) How much electrical power does the cell produce? (c) What power goes to its load?

Step by Step Solution

Step 1: Terminal voltage

Step 2: Calculation of the terminal voltage

Step3: Calculation of the electric power produced

Step 2: Calculation of the electric power output

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College Physics (Urone)

Answers without the blur.

Short Answer

(a) What is the terminal voltage of a large 1.54 v carbon-zinc dry cell used in a physics lab to supply 2.00 a to a circuit, if the cell's internal resistance is 0.100Ω ? (b) How much electrical power does the cell produce? (c) What power goes to its load?

Step by Step Solution

Step 1: Terminal voltage

Step 2: Calculation of the terminal voltage

Step3: Calculation of the electric power produced

Step 2: Calculation of the electric power output

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(a) What is the terminal voltage of a large 1.54 v carbon-zinc dry cell used in a physics lab to supply 2.00 a to a circuit, if the cell's internal resistance is $0.100 Ω$ ? (b) How much electrical power does the cell produce? (c) What power goes to its load?