Asked by sara

Assume that a device exists between two nodes A and B of a circuit and that the voltages of these two nodes A and B are equal to 2V and -3V respectively

What is the voltage drop across the device?

So I think I just go A-B , but it might also be B-A so either 5 or -5. im not sure..
Answered by sara
Technically it could be either...
Answered by Damon
well it asks for the "drop", not just the difference so I guess I would say it dropped 5
However the question is poorly worded.
Answered by bobpursley
poorly worded is very kind.
Answered by Henry
Vb-a = 3 + 2 = 5 Volts.
Va-b = -2 + -3 = -5 Volts.

If the problem asked for Vb-a, I
would say, +5 volts. If it asked for Va-b, I would say negative 5
volts. But it didn't ask for neither of the above; therefore,
my answer would be "Five volts".


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