Kirchhoff’s Laws & Supperposition Theorem & Delta-Wye Transformations

Question 1

States that the algebraic sum of currents is ZERO

Answer 1

Kirchhoff’s Current Law

Question 2

Kirchhoff’s Current Law sign conventions

Answer 2

Entering, positive — Leaving, negative

Question 3

states that the algebraic sum of the potential differences in any loop must be equal to zero

Answer 3

Kirchhoff’s Voltage Law

Question 4

Results from current moving through to the negative side of a component

Answer 4

Voltage drop

Question 5

Usually used as the main power source in Kirchhoff problems

Answer 5

The bigger voltage

Question 6

Involves solving the affected components of each voltage source one at a time, disregarding the other sources in the meantime, before summing up all effects with regards to relative direction.

Answer 6

Superposition theorem

Question 7

Transformation used to equate networks with 3 terminals

Answer 7

Delta-Wye Transformation

Question 8

Wye-to-Delta Transformation

Answer 8

R_{n = (sum of products of every resistance-pair)/(opposite resistance)}

Question 9

Delta-to-Wye Transformation

Answer 9

R_{n = (product of sandwiching resistances)/(sum of all resistances)}