Category: Electricity

Students sometimes assume that adding more resistors to a circuit will always increase its resistance. This is not always true because…

Students at GCSE often assume that current gets used up as it flows through a lamp but actually…

Some people think that connecting a second parallel loop in a circuit will reduce the current flowing to the first but actually…

Non-physicists might assume that a Vann der Graff dome at 40,000V must be dangerous to a healthy adult but actually…

Many people believe that electric currents are always made up of electrons. In reality…

It is often assumed that electrons must travel really fast along wires because when you switch on a light it lights up almost instantly but really…