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A 25 micro farad is charged until the potential difference across it is 500V. Calculate the charge stored at this moment.

The formula to be used here is C = Q / V. Where C = capacitance, Q = charge and V = potential difference. First we can put in the values to get 25 * 10^-6 = Q / 500. This can be rearranged to Q = 500 * 25 * ...
CW
Answered by Cameron W. • Physics tutor
2669 Views

Differentiate (x-2)^2

Answer is 2x - 4. This is found by following the standard differentiation procedure of n(ax-b)^n-1 where n was the previous power and a and b are the value inside the bracket. This means that it first goes t...
CW
Answered by Cameron W. • Maths tutor
8852 Views

Explain how the characteristics of a river change as you travel downstream?

A number of river characteristics change as you travel downstream. Firstly, sediment size decreases due to erosion, which causes sediment to get finer and smoother. This happens due to hydraulic action, abra...
RH
Answered by Rosanna H. • Geography tutor
30187 Views

Use your knowledge of the movement of water to explain why honey has antibacterial properties

Honey has a lower water potential than the water inside bacterial cells due to its high ionic content.Water moves by osmosis from areas of higher water potential to areas of lower water potential.Therefore, ...
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Answered by Sanskriti S. • Biology tutor
4170 Views

How do I form the pluperfect tense?

The pluperfect tense is used to describe an action that happened further back in the past - something you "had done". Here's an example: tu étais partie quand je suis arrivée (you had left when I a...
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Answered by Izzy V. • French tutor
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