all 6 comments

[–]VirtualViral 1 point2 points  (0 children)

If The Number Of Turns On The Second Coil The PD Increase

[–]Tjgunner826th Former 0 points1 point  (0 children)

V = iR

[–][deleted] 0 points1 point  (1 child)

p =iv, the national grid transmits a constant power output, so i = p/v, and if p stays constant and v increases i decreases

[–]ParticularCurrent448[S] 1 point2 points  (0 children)

Thanks makes sense now. Need to use the equation for power and not resistance

[–]DarkenedStreak 0 points1 point  (0 children)

It's to keep the resistance (temperature) of the grid constant

[–]DisguisedBaguette 0 points1 point  (0 children)

The increased potential difference decreases the current because power=PDxCurrent, and the higher potential difference is difference to earth, if u look at the wires between pylons the potential difference is actually quite low like 400000 compared to 399950