Step 5: Determine Voltage Drop Typically in parallel circuits, we are already referring to the voltage across each component, making it unnecessary to calculate voltage drop as in series circuits.

More often than not a question pops up in our forum about speaker impedance and the result of connecting multiple ... our voltage source (in this case our amplifier) to calculate the total load it ...

A LED takes a current of \(12.5 mA\) when the voltage across it is 2 V. Draw a suitable circuit and calculate the value of the series resistor needed to operate the LED from a \(9 V\) battery.

This Ohm’s Law calculator is a handy tool used to calculate voltage (V), current (I), resistance ... but can also be supplied by electric batteries or other sources. In resistive circuits, Joule’s Law ...