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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