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At any junction, the sum of the currents entering the junction is equal to the sum of _______
  • a)
    potential around any closed loop
  • b)
    voltages across the junction
  • c)
    all the currents in the circuit
  • d)
    currents leaving the junction
Correct answer is option 'D'. Can you explain this answer?
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Most Upvoted Answer
At any junction, the sum of the currents entering the junction is equa...
The correct answer is option 'D': currents leaving the junction.

Explanation:
At any junction in an electrical circuit, the sum of the currents entering the junction is equal to the sum of the currents leaving the junction. This is based on the principle of conservation of charge.

When current flows through a junction, it must split into multiple paths. The total amount of charge entering the junction must be equal to the total amount of charge leaving the junction. This is because charge cannot be created or destroyed, it can only flow through the circuit.

To better understand this concept, consider a simple circuit with three branches connected to a junction. Let's label the currents entering the junction as I1, I2, and I3, and the currents leaving the junction as I4, I5, and I6.

The principle of conservation of charge states that the total amount of charge entering the junction must be equal to the total amount of charge leaving the junction. Mathematically, this can be expressed as:

I1 + I2 + I3 = I4 + I5 + I6

This equation shows that the sum of the currents entering the junction (I1 + I2 + I3) is equal to the sum of the currents leaving the junction (I4 + I5 + I6).

This principle is a consequence of Kirchhoff's current law (KCL), which states that the algebraic sum of currents at any junction in an electrical circuit is zero. This means that the sum of currents entering the junction is equal to the sum of currents leaving the junction.

In summary, at any junction in an electrical circuit, the sum of the currents entering the junction is equal to the sum of the currents leaving the junction. This principle is based on the conservation of charge and is a consequence of Kirchhoff's current law.
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At any junction, the sum of the currents entering the junction is equa...
Simple conservation law of current ,what goes inside the circuit will come out from the circuit
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At any junction, the sum of the currents entering the junction is equal to the sum of _______a)potential around any closed loopb)voltages across the junctionc)all the currents in the circuitd)currents leaving the junctionCorrect answer is option 'D'. Can you explain this answer?
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