Veda · OUT OF PURE CURIOSITY
How does light become electricity?
Turn a solar panel and compare its output
Angle changes the light received
The angle is measured between the rays and the perpendicular to the panel. At 0° light hits directly; at 90° it travels along the panel. With unchanged illumination, ideal output is proportional to the cosine of this angle.
P = P₀ × cos(θ)
For adults · discuss together
Only the angle of direct light is modelled. Temperature, diffuse light, efficiency and losses are not calculated. Output is shown as a relative percentage.
Before experience
Ask: “What do you think will happen?” Let the child check his guess first.
After the experience
What has changed? What remains the same? Where can you notice a similar phenomenon?
