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A DC circuit which includes Emfx of unkown magnitude and orientation,
at the location indicated is shown below. Note the 'ground' (V=0) in the
circuit.
9 V
20
ww
7
w
Emfx
50
5 V
20
60
The potential between 'b' and 'a', Vb-Va, is measured to be 2.00 V.
Determine the value and orientation of Emfx:
negative: I. The potential difference, Va-Vc, across Emfx is:
You are correct.
Your receipt no. is 157-8147
II. The magnitude of Emfx is:
2.00 V
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Calculate first the current flowing from b to a.
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Incorrect. Tries 3/99 Previous Tries
III. Calculate the current through the 82 resistor located on the far
right. Use + sign for current flowing toward top of page.
0.600A
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IV. Calculate the power dissipated in the 82 resistor located on the far
right.
1.6528 W
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