Question 1
In the circuit above, find the voltage drop across 
- None of these
Explanation: First, find the total resistance of the circuit.
and 
are in parallel, so we find their equivalent resistance by using the following formula:
Next, add the series resistors together.
Use Ohm's law to find the current in the system.
and 
will have the same voltage drop across them, as they are in parallel, and are equivalent to the combined resistor 
and are in parallel, so we find their equivalent resistance by using the following formula:
Next, add the series resistors together.
Use Ohm's law to find the current in the system.
and will have the same voltage drop across them, as they are in parallel, and are equivalent to the combined resistor