The battery of a car has been discharged and removed. The car is started using an external battery and jump-start cables. The combined length of the cables connecting the terminals to the start-up motor is 1 = 5.53 m and the cross-sectional area of the cable is A = 11.0 mm². The start motor takes in a current of Im = 210 A . A voltmeter shows E = 12.98 V as the external battery voltage, when the motor is disconnected. The internal resistance of the battery is assumed to be R₁ = 10 m2 Resistivity for the copper cable is p = 1.678e - 8 m R₂ = What is the terminal voltage? E₁ R SA external battery = P₁ (+) cable What is the total resistance of the cables? r 52 = 1.75e8 1/2R V 1/2R (-) cable What is the voltage drop in the cables? U₂ = V What is the voltage of the start-up motor? Um V What is the power loss in cables and inside the battery? W motor
The battery of a car has been discharged and removed. The car is started using an external battery and jump-start cables. The combined length of the cables connecting the terminals to the start-up motor is 1 = 5.53 m and the cross-sectional area of the cable is A = 11.0 mm². The start motor takes in a current of Im = 210 A . A voltmeter shows E = 12.98 V as the external battery voltage, when the motor is disconnected. The internal resistance of the battery is assumed to be R₁ = 10 m2 Resistivity for the copper cable is p = 1.678e - 8 m R₂ = What is the terminal voltage? E₁ R SA external battery = P₁ (+) cable What is the total resistance of the cables? r 52 = 1.75e8 1/2R V 1/2R (-) cable What is the voltage drop in the cables? U₂ = V What is the voltage of the start-up motor? Um V What is the power loss in cables and inside the battery? W motor
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter29: Dc Generators
Section: Chapter Questions
Problem 1PA: You are working as an electrician in a large steel manufacturing plant, and you are in the process...
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