A copper wire is 2.50 m long and has a diameter of 2.5 mm. How much current will it draw when connected to 3.5 V source? 2. An electromotive force of a cell is 3.85 V and is connected to a load of 4.25 Ω, the voltage drops to 2.0 V. Find the current and internal resistance of the cell.

A copper wire is 2.50 m long and has a diameter of 2.5 mm. How much current will it draw when connected to 3.5 V source? 2. An electromotive force of a cell is 3.85 V and is connected to a load of 4.25 Ω, the voltage drops to 2.0 V. Find the current and internal resistance of the cell.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 33P: The current supplied to an ail conditioner unit is 4.00 amps. The air conditioner is wired using a...

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Question

Solve the following problems below. Show complete solution.
1. A copper wire is 2.50 m long and has a diameter of 2.5 mm. How much current will it
draw when connected to 3.5 V source?

2. An electromotive force of a cell is 3.85 V and is connected to a load of 4.25 Ω, the voltage
drops to 2.0 V. Find the current and internal resistance of the cell.

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