Question

Physics Kirchhoff's rules; finding voltage in series circuit given the electrical potential difference at battery with loads with unknown resistance. Thanks

Answer 1

Based on the diagram below

Answer 2

I need to calculate the voltage at Delta V given the electrical potential differences necessitated at each load station to make a circuit. I know that 60V will be the starting point but given the "unknown" resistance I am slightly void of reason

Answer 3

@Michele_Laino

Answer 4

what does the statement of Kirchoff's loop rule say??

Answer 5

I am aware that principle of resistance in series circuit assumes Rt=R1+R2+R3...

Answer 6

Right? @ganeshie8

Answer 7

i think that there is no need to use that equation
you can do it by only using kirchoff's loop law
it says that if you loop the circuit from a starting point and then come to that point again, the total potential fall or rise should be 0 Volts

Answer 8

or mathematically, the sum of all the potential differences accross each device (resistance,battery,etc.) should be 0
did you get it now??

Answer 9

thanks for the medal @Vocaloid

Answer 10

Really? Adding them all makes it all zero? However I don't see how voltage will be summed to zero given all of them have positive values.

Answer 11

So from your reasoning v2=60-1.1-2.5=56.4

Answer 12

That's a simple Kingdom Come

Answer 13

Or is it really?

Answer 14

yes that's what i mean!

Answer 15

i'm sorry it took too long to reply

Answer 16

Ok @rajat97 If I've seen further it is by standing on the shoulders of giants like you

Answer 17

XD LOL

Answer 18

i didn't get that
i mean what did you mean to say? :)

Answer 19

Do you realize we are almost equal to or exceeding the conceptual understanding of Kirchoff right now at the time? That means technically we are more informed than our past time physicistsXD

Answer 20

world is getting smarter ever more

Answer 21

hahahaha
but to formulate the law at that time was not an easy nut to crack:)