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Which of the following expression correctly represents Kirchhop's Voltage Law (KVL) for the given circuit diagram?
  • a)
    - 5 - 7 + Vx = 0
  • b)
    - 5 - 7 - Vx = 0
  • c)
    + 5 - 7 + Vx = 0
  • d)
    - 5 + 7 + Vx = 0
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Which of the following expression correctly represents Kirchhops Volta...
Kirchhoffs Voltage Law (KVL):
  • Kirchhoffs Voltage Law or KVL, states that “in any closed loop network, the total voltage around the loop is equal to the sum of all the voltage drops within the same loop” which is also equal to zero.
  • In other words, the algebraic sum of all voltages within the loop must be equal to zero i.e. ∑V = 0
  • KVL is based on the law of conservation of energy.
Consider the figure shown below:
∴ According to KVL,
V1 + V2 + V3 + V4 + V5 = 0
Calculation:
The circuit diagram given in the question can be modified as:
Now by applying KVL in the above circuit, we get
5 + 7 - Vx = 0
∴ - 5 - 7 + Vx = 0
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Most Upvoted Answer
Which of the following expression correctly represents Kirchhops Volta...
Kirchhoffs Voltage Law (KVL):
  • Kirchhoffs Voltage Law or KVL, states that “in any closed loop network, the total voltage around the loop is equal to the sum of all the voltage drops within the same loop” which is also equal to zero.
  • In other words, the algebraic sum of all voltages within the loop must be equal to zero i.e. ∑V = 0
  • KVL is based on the law of conservation of energy.
Consider the figure shown below:
∴ According to KVL,
V1 + V2 + V3 + V4 + V5 = 0
Calculation:
The circuit diagram given in the question can be modified as:
Now by applying KVL in the above circuit, we get
5 + 7 - Vx = 0
∴ - 5 - 7 + Vx = 0
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