Given parameters:
Current of CD player = 0.1A
Source Voltage = 4V
Unknown:
Resistance = ?
Solution:
Based on Ohm's law;
V = I R;
V = voltage
I = current
R = resistance
Input the parameters and solve;
4 = 0.1 x R
R = [tex]\frac{4}{0.1}[/tex] = 40ohms
The resistance of the CD player is 40ohms
