27. Resistors & DC Circuits

Solving Resistor Circuits

Circuit analysis - Solving current and voltage for every resistor

How to Solve a Kirchhoff's Rules Problem - Simple Example

What is the voltage of the battery below?<img src="https://static.studychannel.pearsonprd.tech/courses/physics/thumbnails/images/2e1d88ba"alt=""/>

V2Ω=5.0 V, i2Ω=4.44 A; V1Ω=5.0 V, i1Ω=2.22 A; V3Ω=5.0 V, i3Ω=6.67 A

V2Ω=6.67 V, i2Ω=0.500 A; V1Ω=3.33 V, i1Ω=0.500 A; V3Ω=10.0 V, i3Ω=2.23 A

V2Ω= 1.82V, i2Ω=0.908 A; V1Ω=1.82 V, i1Ω=0.908 A; V3Ω=8.18 V, i3Ω=1.36 A

V2Ω=6.67 V, i2Ω=3.33 A; V1Ω=3.33 V, i1Ω=3.33 A; V3Ω=10.0 V, i3Ω=3.33 A

What is current and voltage across each resistor below?<img src="https://static.studychannel.pearsonprd.tech/courses/physics/thumbnails/images/3a53cffa"alt=""/>


Bulbs T, P, Q, and R will all get brighter.



Bulbs T, P, Q, and R will all get dimmer.



Bulb T will go out. Bulbs P, Q, and R will get brighter.



Bulb T will go out. Bulbs P, Q, and R will get dimmer.



Bulbs T, P, Q, and R will all continue to glow with the same brightness.



Bulb T will go out. Bulbs P, Q, and R will continue to glow with the same brightness.


The five identical lightbulbs in the figure are all glowing. What change in brightness will occur if bulb S is unscrewed and removed from the circuit?
 <img src="https://media.pearsoncmg.com/aw/aw_knight_cp_4_du/msa/content/practice-test/img/CH23_Question01.jpg" alt="A circuit contains a battery and 5 bulbs, P, Q, R, S, and T." />

<img src="https://media.pearsoncmg.com/aw/aw_knight_cp_4_du/msa/content/practice-test/img/CH23_Question10.jpg" alt="A 50-volt battery in series with a 100-ohm resistor and then there is a junction, with a 200-ohm resistor that returns to the battery, and a 300-ohm resistor followed by a box “E?” that returns to the battery." /> If the current in the <math display=“inline”><mrow><mn>100</mn><mtext>&#x00A0;</mtext><mo>&#x03A9;</mo></mrow></math> resistor is <math display=“inline”><mrow><mn>0</mn><mo>.</mo><mn>12</mn><mtext>&#x00A0;</mtext><mtext>A</mtext></mrow></math>, what is <math display=“inline”><mi>&#x2130;</mi></math> ?

Electrical Engineering: Basic Laws (12 of 31) Kirchhoff's Laws: A Harder

Resistors in Electric Circuits (10 of 16) Combination Resistors No. 2

Find Current of One Resistor

Resistors in Electric Circuits (9 of 16) Combination Resistors No. 1

Solving Circuit Problems using Kirchhoff's Rules

Anderson Video - Equivalent Resistance

How to Solve Any Series and Parallel Circuit Problem

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