1.   It was as if an electric current passed through her body.

2.   In a moving-iron meter, the current passes through a fixed coil to create a magnetic induction that magnetises a pivoted, shaped piece of ferromagnetic metal.

3.   An electrical current then passes through the water, stunning the bird so that it feels less pain when its neck is slit.

4.   LEDs are semiconductor devices that light up when an electrical current passes through them.

5.   The current then passes through a gatekeeper called the atrio-ventricular node into the two lower chambers, the ventricles, and triggers their contraction.