Videogames can do whatever they like with their physics. They don't have to follow our so-called laws of nature. Yet there are indeed rules in every game, otherwise the motions of characters wouldn't ...

The electrical power formula is introduced and students learn how to use Ohm’s Law. Power and Series Circuits: The electrical power formula is introduced and students learn how to use Ohm’s Law and ...

A step-down transformer converts 11 500 V into 230 V. The power output is used to run a 2,000 W kettle. Calculate the current flowing in the primary coil. From \(P = V I\), \(kettle~power = V_s \times ...

Visiting all the children on Earth in one night requires serious horsepower (or, reindeerpower?) and now we know exactly how much. According to research carried out by undergraduates at the University ...

To calculate the force on a wire carrying a current at right angles to a magnetic field, use the equation: force on a conductor carrying a current = magnetic field strength × current × length A 50 cm ...