Connect real terminals. Add lamps, switches or a motor and investigate what your build does.
For you as a guide: Discuss your prediction, run the test and compare one change.
Your build is ready. Discuss your prediction and start the test.
Choose a part and place it in the scene. Tap terminals in wire mode. Drag parts; double-tap switches. Arrow keys move the selection.
Your build is ready. Discuss your prediction and start the test.
Current needs a closed path. Components in series carry the same current. Separate parallel branches have the same terminal voltage.
Current in a coil experiences forces in a magnetic field. They can create torque. The commutator maintains its direction; back emf increases with speed.
Build two separate lamp branches and open only one. Then compare with two lamps in series.
Current needs a closed path. Components in series carry the same current. Separate parallel branches have the same terminal voltage.
Current in a coil experiences forces in a magnetic field. They can create torque. The commutator maintains its direction; back emf increases with speed.
Build two separate lamp branches and open only one. Then compare with two lamps in series.
Lamps and resistors have constant resistance here. Brightness follows calculated electrical power and is capped for drawing. The battery has internal resistance; wires are ideal. The motor model uses a single coil, uniform magnetic field, angle-dependent torque, back emf, friction and a load torque. Inductance, heating and sparks are omitted. A single coil has dead points; real multi-coil motors start differently. Dots on the coil mean current out of the drawing plane; crosses mean current into it. This is a learning model for small DC circuits.
OpenStax · Series and parallel circuits
OpenStax · Motors and torque
OpenStax · Back emf
A simulation for exploring together. It does not design real electrical installations, lifting equipment or machinery.