Ohm’s Law Bench — iLearnSTEM Labs

iLearnSTEM Labs

labs.ilearnstem.ca — Virtual Science Laboratories

Ontario Curriculum · Grades 9–12Beta

Ohm’s Law Benchsingle

V 12.0 VI 0.200 AR_eq 60.0 ΩP 2.40 W

V ÷ I60.0 Ω= R_eq ✓

V–I slope1 ÷ Ra straight line through the origin

P = V·I2.40 Wdissipated as heat — watch the glow

law in playI ∝ V at fixed R — sweep V for a straight V–I line through the origin

Single resistor · DC steady state, V = I·R

Ohm’s law holds — V = I·R: 12.0 = 0.200 × 60.0 ✓

Electronics Lab 02 · Ohm’s Law Bench — drag to orbit, scroll to zoom

Supply

Voltage V12.0 V

I = V ÷ R_eq = 0.200 A — sweep V for the V–I relationship

Circuit

One resistor across the supply — the pure Ohm’s-law bench. Sweep V and watch I follow in direct proportion (I = V ÷ R); the V–I plot would be a straight line through the origin with slope 1÷R.

R160 Ω

R_eq = 60.0 Ω

Display

Electron drift dots

The dots illustrate electron flow — drift speed drawn ∝ I, direction − → +, OPPOSITE conventional current (F3.3). The meters and every number come from Ohm’s law itself.