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ELECTRICITY · Class 10

Ohm’s Law Circuit

Verify V = IR and compare electrical power at different settings.

Printable worksheet ↗
INTERACTIVE LAB
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UNDERSTAND THE SCIENCE

The physics behind the experiment

An ideal ohmic resistor obeys V = IR. Current I = V/R and dissipated power P = VI = V²/R. The simulation assumes an ideal DC source, negligible wire resistance and a constant resistor temperature.

Try this guided investigation

  1. Set V = 6 V and R = 12 Ω. Compute current before reading the meter.
  2. Double the voltage while leaving resistance unchanged.
  3. Restore V and halve the resistance. What happens to electric power?

All numerical values follow the model assumptions stated here; artwork is schematic, not a scale engineering drawing.

LEARN THE THEORY IN DEPTH

Ohm’s Law Explained: Voltage, Current, Resistance and Power

Learn V = IR and P = VI with worked circuit calculations, an interactive Ohm’s law experiment, real limitations and Class 10 questions.

Read complete lesson ↗