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Question
The figure shows part of an electric circuit. The potential difference VA - VB is ______.
Options
9.0 V
7.5 V
6.0 V
4 .5 V
MCQ
Fill in the Blanks
Solution
The figure shows part of an electric circuit. The potential difference VA - VB is 7.5 V.
Explanation:
VA+ (8V)- (0.5A) (4Ω)- (12 V)- (0.5 A) (3Ω) =VB)
VA + 8 - 2 - 12 - 1.5 = VB
∴ VA - 7.5 = VB
∴ VA-VB = 7.5
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Kirchhoff’s Laws of Electrical Network
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