# Circuit construction kit dc

Download the PhET CD-ROM Distribution archive onto your computer (280 MB). Extract the contents of the archive (on most operating systems, this is done by double-clicking the downloaded file). Copy all the files to the CD-ROM. Please remember to periodically check for updated versions of the PhET simulations .

## What does a resistor do in a circuit?

A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. In electronic circuits , resistors are used to reduce current flow, adjust signal levels, to divide voltages, bias active elements, and terminate transmission lines, among other uses.

## How do you calculate total resistance?

If you know the total current and the voltage across the whole circuit, you can find the total resistance using Ohm’s Law: R = V / I. For example, a parallel circuit has a voltage of 9 volts and total current of 3 amps. The total resistance RT = 9 volts / 3 amps = 3 Ω.

## Is voltage the same in parallel?

A parallel circuit has two or more paths for current to flow through. Voltage is the same across each component of the parallel circuit. The sum of the currents through each path is equal to the total current that flows from the source.

## How do you find the current in a series circuit?

You can calculate the amplitude, in amps or amperes given by the variable A, of the series circuit by summing up the resistance at each resistor in the circuit as R and summing up the voltage drops as V, then solving for I in the equation V = I/R in which V is the voltage of the battery in volts, I is current , and R is

You might be interested:  Lift machine for construction

## How do you find the current in a circuit?

Ohms Law and Power To find the Voltage, ( V ) [ V = I x R ] V (volts) = I (amps) x R (Ω) To find the Current , ( I ) [ I = V ÷ R ] I (amps) = V (volts) ÷ R (Ω) To find the Resistance, ( R ) [ R = V ÷ I ] R (Ω) = V (volts) ÷ I (amps) To find the Power (P) [ P = V x I ] P (watts) = V (volts) x I (amps)

## Why is current same in series circuit?

The current in a series circuit is the same at each resistor present in the circuit . Since each light bulb has the same resistance (” identical bulbs”) and the same current , they will have the same power output (P = I2R as discussed in the previous Lesson ).

## Why is potential difference same in parallel?

Potential difference in parallel Since energy has to be conserved, the energy transferred around the circuit by the electrons is the same whichever path the electrons follow. The energy from the battery store is shared between the components depending on the resistance of each one.

## Is PhET free?

About PhET . PhET provides fun, free , interactive, research-based science and mathematics simulations.

## Does PhET use Flash?

Android : Not officially supported. If you are using the HTML5 sims on Android , we recommend using the latest version of Google Chrome. The HTML5 and Flash PhET sims are supported on all Chromebooks.

## What does PhET mean?

Physics Education Technology