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What actually is current? Why does it differ from potential difference?
Current is defined as 'the flow of electric charge'. It can be broken down into very simple system of electrons, who carry charge, moving around a circuit. Potential difference can be thought of the force th...
JO
Answered by
James O.
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Physics tutor
7663 Views
Find the period of a wave given that it has a speed of 200m/s and a wavelength of 2m
The equation for finding the period of the wave is the reciprocal of the frequency hence th eperiod T =1/f substitute this into the wave speed equation v=f x lambda solve for f f = v/ lambda f= 200/ 2 f= 100...
ZJ
Answered by
Zubaydah J.
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Physics tutor
3519 Views
Why are transformers used in the National Grid?
The National Grid is how electricity is distributed from suppliers to consumers (commercial or private household). Power stations produce power in the region of Mega Watts (the order of millions of watts) an...
MR
Answered by
Mike R.
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Physics tutor
19089 Views
What is a Sankey diagram and how do we use it?
A Sankey Diagram can be used to represent the energy usage and efficiency of anything. There are 3 main parts of Sankey diagram, the start (left side), the arrow heads that peel off facing upwards or downwar...
AW
Answered by
Alex W.
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Physics tutor
11200 Views
Why protons held together in the nucleus?
Alike atoms, protons are also made of smaller particles - mesons. When protons are at very close distance mesons are bonded together by the Strong Nuclear Force, which is stronger than the Electric Force, bu...
ED
Answered by
Eugeniu D.
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Physics tutor
4709 Views
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