User:Lujaen

Homework 1

Circuit with one resistor:

Battery: 6.73V Resistor: 471 Ohm

Voltage across resistor: 6,1V Current through resistor: 12,9A

Double resistor (1k) V: 6,35V A: 6,4 A

Half Resistor (220) V: 5,5V A:25,2A

Circuit with two resistors:

Battery: 6,7V Resistor: 470

Voltage across resistor 1: 3,2V Voltage across resistor 2: 3,2V Current resistor 1: 6,8 A Current resistor 2: 6,8 A

Double one of them:

Voltage resistor 1 (double): 4,4V Voltage resistor 2: 2,05V Current resistor 1 (double): 4,4A Current resistor 2: 4,4A

Half Value of resistor: Voltage resistor 1 (half): 2,05V Voltage resistor 2: 4,25 V Current resistor 1 (half): 9,2 A Current resistor 2: 9,2A

Circuit with four resistors:

Battery: 6,5V Resistor: 470

Voltage across all resistors: 1,6V Current across all resistors: 3,5A

Double one of them:

Voltage resistor double: 2,7V Voltage resistor rest: 1,27V Current: 2,7A

Half Value of resistor: Voltage resistor half: 0,87V Voltage resistor rest: 1,87 V Current: 4V

Two parallel:

Battery: 6,4V Resistor: 470

Voltage resistors: 5,7V Current both: 12,2 A

Double resistor Voltage double: 5,85V Voltage normal: 5,85V Ampere double: 5,9A Ampere normal: 12,5A

Half resistor Voltage half: 5,36 Voltage normal: 5,36 Ampere half: 24,5 A Ampere normal: 11,5 A

Three parallel:

Battery: 6,3V Resistor: 470

Voltage resistors: 5,5V Current: 12,9 A

Double resistor Voltage: 5,6V Ampere double: 6,3A Ampere normal: 12,9A

Half resistor Voltage: 5,16V Ampere half: 23,3A Ampere normal: 10,7A

LED

Less resistance -> more light!

Homework 2

When looking for circuits that are using the 555 chip as a main component I quickly stumbled across this video of an 8-step sequencer based on two 555 timers and one 4017 decade counter.

8 Step Sequencer using a 555 timer as the oscillator

{{#ev:youtube |TGN7XrS1rQ0 }}

The creator chose to share his schematic and I decided I wanted to replicate this. Of course, having no previous experience with electronics I was a bit worried that this might be above my skill levels but after consulting Simon chose to pursue it anyway.