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A volt is a joule per coulomb.If you're struggling to remember try and picture the situation. Imagine current as individual units of charge passing through a battery. The charge has passed round the whole...

Your introduction should briefly set up the parameters of your essay; and touch on the themes and topics that you're going to cover in your essay. It's essentially the tl;dr of your essay, but you have to...

'On' is usually used in informal situations to mean 'we'. Instead of saying 'nous allons aller au cinéma' you might say 'on va aller au cinéma'. It's very common to hear and see French people using 'on' i...

The preterite tense is used to talk about completed actions in the past, actions that have a defined beginning and end. It's often accompanied by phrases that give a spec...

when we observed stars from the Earth, we noticed that almost all of the light emitting from the stars was being shifted to the red end of the spectrum. This indicates that the wave was essentially being ...