Kirchoff's 2nd Law - Revision history

NRJC: /* Examples */

2024-05-23T09:24:38Z

‎Examples

NRJC: /* Formula */

2024-05-23T09:23:02Z

‎Formula

NRJC: /* Formula */

2024-05-23T09:22:08Z

‎Formula

NRJC at 09:21, 23 May 2024

2024-05-23T09:21:21Z

NRJC: Created page with "==Key Stage 5== ===Meaning=== Kirchoff's 2nd Law states that the sum of the electromotive forces (emfs) in any closed loop is equal to the sum of [..."

2024-05-23T09:14:58Z

Created page with "==Key Stage 5== ===Meaning=== Kirchoff's 2nd Law states that the sum of the electromotive forces (emfs) in any closed loop is equal to the sum of [..."

New page

==Key Stage 5==
===Meaning===
[[Kirchoff's 2nd Law]] states that the sum of the [[Electromotive Force|electromotive force]]s (emfs) in any closed loop is equal to the sum of [[Potential Difference|potential differences (pds)]] in that loop.

===About Kirchhoff's Second Law===
*Also known as the '''[[Potential Difference|voltage]]''' law or '''loop rule'''.
*[[Kirchoff's 2nd Law]] is based on the [[Conservation of Energy|conservation of energy]].
*[[Kirchoff's 2nd Law]] is useful for solving complex circuits with multiple loops.
*The algebraic [[sum]] of the [[Product (Maths)|products]] of the Electrical Current|currents]] and the [[resistance]]s in any closed loop equals the [[sum]] of the [[Electromotive Force|emfs]] in that loop.
*[[Kirchoff's 2nd Law]] helps in setting up equations to solve for unknown [[Potential Difference|voltage]]s and [[Electrical Current|currents]] in circuit analysis.
*[[Kirchoff's 2nd Law]] is applicable to both [[Direct Current|DC]] and [[Alternating Current|AC]] circuits.
Used in combination with [[Kirchoff's 1st Law|Kirchhoff's first law]] for comprehensive circuit analysis.
===Examples===

*In a series circuit, the sum of the [[Potential Difference|voltage]]s across each component equals the total [[Potential Difference|voltage]] supplied by the battery.
*Applied to find the potential differences and emfs in electrical circuits.

@@ Line 20: / Line 20: @@
 Where:
-*<math>\sum V_n</math> represents the sum of all [[Potential Difference|voltages]] in a loop,
+*<math>\sum V_n</math> represents the sum of all [[Potential Difference|voltages]] in a loop (including [[Electromotive Force|emfs]] and [[Potential Difference|pds]]),
 *<math>V_1 + V_2 + V_3 +...</math> represents the individual [[Electromotive Force|emfs]] and [[Potential Difference|pds]] of each component in a loop,

@@ Line 16: / Line 16: @@
 *<math>\sum V_n=V_1 + V_2 + V_3 +...=0</math>
-*<math>\sum \epsilon=\sum V_{pd}</math>
+*<math>\sum \varepsilon=\sum V_{pd}</math>
 Where:
@@ Line 24: / Line 24: @@
 *<math>V_1 + V_2 + V_3 +...</math> represents the individual [[Electromotive Force|emfs]] and [[Potential Difference|pds]] of each component in a loop,
-*<math>\sum \epsilon</math> represents the sum of all [[Electromotive Force|emfs]] in a loop,
+*<math>\sum \varepsilon</math> represents the sum of all [[Electromotive Force|emfs]] in a loop,
 *<math>\sum V_{pd}</math> represents the sum of all [[Potential Difference|potential differences]] across components in a loop
 ===Examples===

@@ Line 30: / Line 30: @@
 ===Examples===
-*In a series circuit, the sum of the [[Potential Difference|voltage]]s across each component equals the total [[Potential Difference|voltage]] supplied by the battery.
+*In a [[Series Circuit|series circuit]], the sum of the [[Potential Difference|voltage]]s across each component equals the total [[Potential Difference|voltage]] supplied by the [[Electrical Battery|battery]].
-*Applied to find the potential differences and emfs in electrical circuits.
+*Applied to find the [[Potential Difference|potential differences]] and [[Electromotive Force|emfs]] in [[Electrical Circuit|electrical circuits]].

@@ Line 10: / Line 10: @@
 *[[Kirchoff's 2nd Law]] helps in setting up equations to solve for unknown [[Potential Difference|voltage]]s and [[Electrical Current|currents]] in circuit analysis.
 *[[Kirchoff's 2nd Law]] is applicable to both [[Direct Current|DC]] and [[Alternating Current|AC]] circuits.
-Used in combination with [[Kirchoff's 1st Law|Kirchhoff's first law]] for comprehensive circuit analysis.
+*[[Kirchoff's 2nd Law]] can be used in combination with [[Kirchoff's 1st Law|Kirchhoff's first law]] for comprehensive circuit analysis.
 ===Examples===
 *In a series circuit, the sum of the [[Potential Difference|voltage]]s across each component equals the total [[Potential Difference|voltage]] supplied by the battery.
 *Applied to find the potential differences and emfs in electrical circuits.