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This simulation is designed to demonstrate the potential difference across the circuit as compared to that in a water circuit.


-Interaction with dragging

-Prompt button

-Reset button




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Software Requirements


Android iOS Windows MacOS
with best with Chrome Chrome Chrome Chrome
support full-screen? Yes. Chrome/Opera No. Firefox/ Samsung Internet Not yet Yes Yes
cannot work on some mobile browser that don't understand JavaScript such as.....
cannot work on Internet Explorer 9 and below



Author name; Fremont Teng

end faq

Sample Learning Goals


For Teachers


Instructions on how to use the Simulation Applet

Drag-able Objects

(Drag-able Water Pump)


(Drag-able Bulb, Switch, Battery [From left to right])
Step 1: Look at the circuit
Step 2: Drag an object into the translucent cell
If the object placed is wrong, a Wrong text will appear.

Placing the right object however will display the name of the object.
Step 3: Complete the circuit
By completing the circuit, the circuit will animate
and popup texts and explanations will appear.


Completing the water circuit will lead to the electric one.
(Note that if you disrupt the water circuit, the electric circuit will disappear)

Reset Button 

Click on the button resets the simulation.






Other Resources


end faq

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  • DC
  • Science
  • Simulations