Determine the total resistance of each of the following parallel circuits, (you can calculate the total resistance from the
voltage using ohm's law
a. a parallel circuit with a 20-ohm resistor and a 10-ohm resistor.
b. a parallel circuit with two 20-ohm resistors and a 10-ohm resistor
c. a parallel circuit with a 15-ohm light bulb and a 20-ohm resistor.
d. a parallel circuit with two 100-ohm resistors and a 20-ohm resistor.
e. a parallel circuit with a 10-ohm, 20-ohm, 100-ohm and 200-ohm resistor.
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