= 113 ohm
The total resistance for resistors connected in parallel can be calculated as
1 / R = 1 / R 1 + 1 / R 2 + .... + 1 / R n (2)
Equivalent resistance of 2 resistors connected in parallel can be expressed as
R = R 1 R 2 / (R 1 + R 2 ) (3)
Three resistors 33 ohm , 33 ohm and 47 ohm are connected in parallel. The total resistance can be calculated as
1 / R = 1 / ( 33 ohm ) + 1 / ( 33 ohm ) + 1 / (47 ohm )
= 0.082 (1 / ohm)
R = 1 / (0.082 ohm)
= 12.2 ohm
If the battery voltage is 12 V - the current through the circuit can be calculated by using Ohm's law
I = U / R
= (12 V) / (12.2 ohm)
= 0.98 ampere
The current through each resistor can be calculated
I 1 = U / R 1 = (12 V) / (33 ohm) = 0.36 ampere
I 2 = U / R 2 = (12 V) / (33 ohm) = 0.36 ampere
I 3 = U / R 3 = (12 V) / (47 ohm) = 0.26 ampere
Add the resistances for up to five parallel connected resistors and (optionally) the circuit voltage.
The total resistance and current - and the individual currents in all resistors - will be calculated:
Electrical units, amps and electrical wiring, wire gauge and AWG, electrical formulas and motors.
Characteristics of all-aluminum conductors (AAC).
Parallel and serial connected capacitor circuits.
An electric current divider outputs a current that is a fraction of the input current.
Online shareable electric circuit diagram.
Electrical inductance in serial and parallel connected inductors.
Resistance, voltage and current in electrical parallel circuits.
Voltage and current in electrical series circuits.
Specific gravity and charge of lead acid batteries - temperature and efficiency.
Output voltage with a potential divider.
Color codes for fixed resistors - values and tolerances - online calculator.
Letter and digit codes to indicating resistor values.
Preferred number series for resistors.
Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp from the Sketchup Extension Warehouse!
We don't collect information from our users. Only emails and answers are saved in our archive. Cookies are only used in the browser to improve user experience.
Some of our calculators and applications let you save application data to your local computer. These applications will - due to browser restrictions - send data between your browser and our server. We don't save this data.