

[?]Subscribe To This Site

Parallel Circuit VoltageYou have seen that the source voltage in a series circuit divides proportionately across each resistor in the circuit. IN PARALLEL CIRCUIT VOLTAGE, THE SAME VOLTAGE IS PRESENT IN EACH BRANCH. (A branch is a section of a circuit that has a complete path for current.) In the first illustration below this voltage is equal to the applied voltage (Es). This can be expressed in equation form as: ES = ER1 = ER2 Parallel circuit voltage measurements are taken across the resistors of a parallel circuit, (as illustrated below) to verify this equation. Each meter indicates the same amount of voltage. Notice that the voltage across each resistor is the same as the applied voltage. Voltage comparison in a parallel circuit.
Example: Assume that the current through a resistor of a parallel circuit is known to be 4.5 milliamperes (4.5 mA) and the value of the resistor is 30,000 ohms (30 kÙ). Determine the source voltage. The circuit is shown in the next illustration below Given: Solution: Example problem parallel circuit.
Since the source voltage is equal to the voltage of a branch: To simplify the math operation, the values can be expressed in powers of ten as follows: 
Become a loyal member to our site. It's free!
Site Search Custom Search Translate your pageIf English is not your first language you can Translate the text on this page to any one of the languages found in the drop down menu. Select your language from the list for an instant translation.
Looking for something unique for your project? Choose from the drop down menu for quick access to the item you seek.
Related PagesBecome an Electronics Technician
Convert most anything with this utility
Find your wire and cable here!
Sponsored SitesIf you like this site please pay it forward. Donations are welcome.

