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Electric circuits miscellaneous

  1. Voltage across the terminals a and b in the given figure is _______V
    1. 1.75
    2. 3.5
    3. 7
    4. 15
Correct Option: B

It is required to find voltage across the terminals a and b.

With respect to node a, apply Nodal equation, we have

Va - 1
+
Va
- 3 = 0
22

⇒ 2Va – 1 – 5 = 0
∴ Va = 3.5 V



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