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PROBLEM # 2 - SOLUTION:

A CD Player with a resistance of 40 ohms has a current of 0.1 amps flowing through it. How many volts supplies the CD player?

Sketch:


Solution:

Start with the Equation of Ohm's Law



Since voltage is what needs to be found and the equation is already interms of current and resistance, substitute in the values for I and R.



Solve for Voltage (V).




This activity was created by Steven Gutierrez, for the Learning Technologies Project, at the NASA Glenn Research Center, in 1996.



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