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# Weird current question? Watch

1. How would you go about solving this? its supposed to be simple?
2. This is Kirschoff's law - No charge, and so current, accumulates at a node (junction between wires). So the sum of all the currents going in must equal to the sum of all the currents going out.
3. I stands for current

Its not A becuase that says - I2+I3+I4=I1

Its not B because that says - I1+I4=I2+I3

Its not D because that says - I1=I2+I3+I4

Its C becuase the current comes from I1 and I2 to meet at the middle and leaves at I3 and I4 directing away from the middle
4. Long story short:
Magnitude of Inwards arrows must equal Magnitude of Outwards arrows

Edit: Relative to the node.
5. (Original post by BonjournoDeano)
I stands for current

Its not A becuase that says - I2+I3+I4=I1

Its not B because that says - I1+I4=I2+I3

Its not D because that says - I1=I2+I3+I4

Its C becuase the current comes from I1 and I2 to meet at the middle and leaves at I3 and I4 directing away from the middle
Oh! Thanks
6. (Original post by tamimi)
Long story short:
Magnitude of Inwards arrows must equal Magnitude of Outwards arrows

Edit: Relative to the node.

(Original post by tory88)
This is Kirschoff's law - No charge, and so current, accumulates at a node (junction between wires). So the sum of all the currents going in must equal to the sum of all the currents going out.
Thank you

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