Transistors do not create electric current ... (very small current and the LED does not light). Safety: The current in this circuit is small enough to perform this activity safely, but caution ...

The film explains how electric current is generated at power plants and delivered to homes through wires. It describes the concept of electric circuits, including closed and open circuits ...

Electrical components, like motors close motorA device which spins when current flows through it. Motors are used in fans, food processors and many other devices. and lamps close lampA component ...

The simplest complete circuit is a piece of wire from one end of a battery to the other. An electric current can flow in the wire from one end of the battery to the other, but nothing useful happens.

(a) Magnitude of electric current in the wire is increased. (b) The compass needle is displaced away from the wire. How is the type of current that we receive in a domestic circuit different from ...