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As a variable resistor's resistance can be changed, we can therefore change the current in the circuit. This will be according to Ohms Law, as a simple resistor is a Ohmic Conductor.

So if we set u...

Ideal gas equation: pV=nRT Rearrange to get T: T=pV/nR Convert pressure to Pa: 50 x 1000 = 50,000 Convert volume to m^3: 1000 / (100)^3 = 0.001 Insert to find temperature: T = (50,000 x 0.001) / (0.05 x 8...

By and large they are looking for evidence to make them feel confident that you will be a successful and happy student on the course you are choosing to study. Think of your personal statement as being a ...

There are 5 key criteria in the marking scheme for you to pay attention to but the first and most important step is to get into the literature. You need to demonstrate thorough reading and genuine interes...

The first step in finding any turning point is to differentiate. To do this, we muiltiply x by its power and drop the power by 1. so in this senario we multiply the -2x by 2 giving us -4x and the power be...