Which law states that the current flowing into junction must be equal to the current flowing out of it?
Show Hint
- Kirchhoff's Current Law (KCL) Sum of currents entering a node equals sum of currents leaving the node (conservation of charge).
- Kirchhoff's Voltage Law (KVL) Sum of voltages around any closed loop is zero (conservation of energy).
- \( \text{Boolean} \)
- \( \text{Kirchhoff's} \)
- \( \text{Laplace} \)
- \( \text{Fourier} \)
The Correct Option is B
Solution and Explanation
The question asks which law states that the current flowing into a junction must be equal to the current flowing out of it.
1. Understanding the Concepts:
- Kirchhoff's Current Law (KCL): This law states that the algebraic sum of currents entering a node (or junction) is equal to zero. In simpler terms, the total current flowing into a junction must equal the total current flowing out of that junction. This is based on the principle of conservation of charge.
- Kirchhoff's Voltage Law (KVL): This law states that the algebraic sum of all voltages around any closed loop in a circuit must equal zero.
- Ohm's Law: This law states the relationship between voltage, current, and resistance: V = IR.
- Faraday's Law: This law describes the relationship between a changing magnetic field and the electric field it induces.
2. Analyzing the Options:
The description perfectly matches Kirchhoff's Current Law (KCL).
Final Answer:
The law that states that the current flowing into a junction must be equal to the current flowing out of it is Kirchhoff's Current Law (KCL).
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