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 ...

In nuclear beta decay an up quark ‘u’ in a proton converts into an up down quark ‘d,’ turning the proton into a neutron and emitting a positron and a neutrino. This work affects interpretation of beta ...

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 ...

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 ...

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

Zoltan Fodor receives funding from DFG, BMBF. When the results of an experiment don’t match predictions made by the best theory of the day, something is off. Fifteen years ago, physicists at ...

City Power, the City of Johannesburg’s electricity utility, is clamping down on individual households who consume too much power, in an attempt to curb load shedding in the city. City Power has ...