Isaac physics a level

Calculate r, if P equals 500 MW,P=500MW, V equals 23 kV, V=23kV and efficiency is 99%, η=0.99.

Hmm i think you'll need to post some more info
not sure what r would be here

Original post by rick780567

Calculate r, if P equals 500 MW,P=500MW, V equals 23 kV, V=23kV and efficiency is 99%, η=0.99.

I think that this question has something to do with electrical engineering, but I need more details for a precise answer.

(Original post by Kallisto)unfortunately these are the only details given in the question

Original post by RubberKeyboard

Hmm i think you'll need to post some more info
not sure what r would be here

Alternatively, it seems that this is the 7th question in a series of questions:

And the first question in the series (10.1), tells you the definition of r, as well as some relevant equations:
https://isaacphysics.org/questions/phys_linking_10_q1?stage=all

Original post by rick780567

(Original post by Kallisto)unfortunately these are the only details given in the question

Not even a text in form of a past paper or something like that in which the circumstances are explained?

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