↔ Drag components anywhere🔌 Drag from one terminal to another✂ Click a wire to cut it
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Interactive Circuit Board
Circuit incomplete
Draggable interactive electric circuit
↔ Drag components anywhere🔌 Drag from one terminal to another✂ Click a wire to cut it
Current Flow Problem Solver
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Choose a category and enter the known values. The answer and circuit update automatically.
Ohm's Law Starter
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immediately.
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ComponentLamp
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Removing this component also cuts every wire attached to it and
recalculates the circuit.
Student Help Guide
Follow these steps to build, connect, test, and understand series
and parallel circuits.
1
Choose or build
Select an optional template, or drag a battery and other
components from the left tray onto the empty board.
2
Arrange the components
Drag each component to any position. Leave enough space so
wires and branches are easy to see.
3
Connect the circuit
Press a colored terminal, drag the glowing wire to another
terminal, and release. Continue until the battery has a
complete return path.
4
Check the impact
Watch the connection message, lamp brightness, moving
charges, meter readings, current graph, resistance, and
power.
5
Experiment
Change voltage and resistance, open or close the switch,
compare series with parallel, and click a wire if you need
to cut it.
1
Place the parts
Add one battery, one switch, an ammeter, and two loads such
as a lamp and resistor.
2
Create one continuous path
Connect each component end-to-end. Do not create branches.
3
Complete the return path
The last component must connect back to the unused battery
terminal.
4
Measure
Keep the ammeter inside the single path. Connect the
voltmeter across the lamp if you want its voltage drop.
Battery (+) → Ammeter → Lamp → Resistor → Switch → Battery (−) Series
rule: the same current passes through every component, and
resistances add.
1
Build the main path
Add a battery, switch, and ammeter. Connect them to create
the supply side of the circuit.
2
Create two junctions
Use one point where current divides and another where the
branches join again.
3
Add separate branches
Place the lamp on one branch and a resistor or second lamp
on another branch.
4
Reconnect to the battery
Join both branches at the return junction, pass through the
switch, and connect to the other battery terminal.
Battery (+) → Ammeter → Junction → Branch 1 / Branch 2 → Junction
→ Switch → Battery (−) Parallel rule: every branch has the
same voltage, while branch currents add.
Ⓐ Ammeter
Connect in series so the branch current passes through it.
Never connect it directly across the battery.
Correct reading: current in amperes (A).
Ⓥ Voltmeter
Connect in parallel across the component being measured. Its
two terminals should touch the two sides of that component.
Correct reading: potential difference in volts (V).
Reading precision: A value such as 8.99 V instead
of 9.00 V is caused by the simulator’s tiny wire and meter
resistance. The board meter and Live Analysis use the same
calculation.
