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Home Q & A Board Science-Related Homework Help Physics
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darwin darwin
wrote...
12 years ago
Consider the circuit in the drawing. (R1 = 2.0-ohms , R2 = 33-ohms , V1 = 37.0 V)

DRAWING:
http://img.photobucket.com/albums/v238/koetjet24/20_77alt.gif

(a) Determine the magnitude of the current (A) in the circuit.

(b) Determine the magnitude of the voltage (V) between the points labeled A and B.

(c) Select which point, A or B, is at the higher potential.
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wrote...
#1
12 years ago
Current will flow clockwise (because V1 is larger than 10V) and will be equal to total voltage divided by total resistance.

I = (37-10)V/(33+2+8+12)? = 0.419A

Starting at A going toward B we have:

Vab = 37V - 0.419A*33? = +23.1V

Point B is 23.1V higher than A
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