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State and explain Kirchhoff's laws.3 0 |
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Answer» Kirchhoff's law (1) states that the voltage changes around a closed path in a circuit add up to zero, where the voltage change DV = emf in going through a battery from - terminal to + terminal is considered to be positive, and the voltage change DV = I R in going through a resistor in the assumed direction of the current I is considered to be negative.Kirchhoff's law (2) states that the sum of the currents entering any node (i.e., any junction of wires) equals the sum of the currents leaving that node. |
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