voltage in a circuit?
Ok my book is so terrible at explaining this. V2 = V3 = V4 in the diagram. But what's that in relation to V1? Is it V1 = v2+v3+v4? or are they all equal? help.
http://i.imgur.com/cZX6q.jpg
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v2, v3 and v4 have to be equal, because they are in parallel. v1 can be anything. There is no relationship to v2 in the drawing. The total voltage is v1 + v2.
They are all equal. Each is connected directly to V1.
The "arrow" out to the right represents negative, the V1 is the positive end.
So V2, V3 and V4 must be equal to V1, they cannot be added.
if V2= 5V
V3=5V, V4=5V but V1 is going to be greater than each one of them.
V1 + any of the V2 thru V5 = emf of the circuit.