According to Kirchhoff's Current Law (KCL), what must be true at a junction in an electrical circuit?
Practice Questions
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Q1
According to Kirchhoff's Current Law (KCL), what must be true at a junction in an electrical circuit?
The sum of voltages is zero
The sum of currents entering equals the sum of currents leaving
Power is conserved
Resistance is constant
KCL states that the total current entering a junction must equal the total current leaving that junction.
Questions & Step-by-step Solutions
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Q
Q: According to Kirchhoff's Current Law (KCL), what must be true at a junction in an electrical circuit?
Solution: KCL states that the total current entering a junction must equal the total current leaving that junction.
Steps: 5
Step 1: Understand what a junction is. A junction is a point in an electrical circuit where two or more wires meet.
Step 2: Know what current is. Current is the flow of electric charge in a circuit, measured in amperes (A).
Step 3: Remember that KCL is a rule about current at a junction. It tells us how current behaves when it reaches a junction.
Step 4: KCL states that the total amount of current flowing into the junction must be equal to the total amount of current flowing out of the junction.
Step 5: This means if you add up all the currents going into the junction, it should equal the sum of all the currents going out.
