Unit 2 - Introduction to direct current technology

Question 1

kirchhoff’s law

Answer 1

include the rules for calculating currents and voltages in meshes and nodes in electrical circuits

Question 2

KCL

Answer 2

kirchhoff current law
states that charges are preserved and, accordingly, at any node in a network, the sum of the incoming currents must be equal to the sum of the outgoing currents. even for current varing in time

Question 3

KVL

Answer 3

kirchhoff voltage law
states that the sum of all voltages in a closed mesh must always be zero. even for voltages varing in time

Question 4

voltage divider rule

Answer 4

in a series circuit, the ratio of the voltage drop across a resistor to the total voltage is equal to the ratio of the individual resistor to the total resistance

Question 5

current divider rule

Answer 5

in a parallel circuit of ohmic resistor, the ratio of the current through an individual resistor to the total current is equl to the ratio of the individual conductance to total conductance