“When a circuit incorporates resistance exercises like push-ups, squats, lunges, or weightlifting movements, it can build strength and muscle tone,” Nielsen-Consiglieri says.

Know your way around an electric circuit? Show that you know your series circuits from your parallel circuits with BBC Bitesize.

Resistance in parallel circuits Unlike a series circuit, adding more components to a parallel circuit decreases the total resistance ® of the circuit.

But what IS a short circuit? A short circuit happens when an electrical current flows outside of its intended circuit with no resistance to the flow.