Difference between revisions of "User:Meikebrand"

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== HOMEWORK -1- ==
 
== HOMEWORK -1- ==
  
'''Circuit with one resistor'''
+
'''''Circuit with one resistor'''''
  
 
Brown, green, red, gold
 
Brown, green, red, gold
Line 14: Line 14:
 
:9 volt battery
 
:9 volt battery
  
* What is the voltage across the resistor
+
'''What is the voltage across the resistor'''
Voltage drop is 0,1,4 V
+
:Voltage drop is 0,1,4 V
* What is the current through the resistor
+
'''What is the current through the resistor'''
6 amp
+
:6 amp
* What happens to the current and voltage if you double the resistor value
+
'''What happens to the current and voltage if you double the resistor value'''
Current stays the same and voltage doubles
+
:Current stays the same and voltage doubles
* What happens to the current and voltage if you half the resistor value
+
'''What happens to the current and voltage if you half the resistor value'''
Current stays the same and voltage is split in half
+
:Current stays the same and voltage is split in half
  
'''Circuit with two resistors'''
+
 
 +
 
 +
'''''Circuit with two resistors'''''
  
 
Brown, black, orange, gold
 
Brown, black, orange, gold
Line 35: Line 37:
 
:Voltage drop = 0,9 x 10 ohms = 9
 
:Voltage drop = 0,9 x 10 ohms = 9
  
* What is the voltage across each resistor
+
'''What is the voltage across each resistor'''
Voltage drop is 9
+
:Voltage drop is 9
* What is the current through each resistor
+
'''What is the current through each resistor'''
9 amp
+
:9 amp
* What happens to the current and voltage if you double the resistor value of one resistor
+
'''What happens to the current and voltage if you double the resistor value of one resistor'''
Current stays the same and voltage doubles
+
:Current stays the same and voltage doubles
* What happens to the current and voltage if you half the resistor value of one resistor
+
 
 +
 
  
'''Circuit with three or more series resistors'''
+
'''''Circuit with three or more series resistors'''''
  
 
Orange, orange, orange, gold
 
Orange, orange, orange, gold
Line 55: Line 58:
 
:Voltage drop = 0,27 x 33 ohms = 8,91 drop
 
:Voltage drop = 0,27 x 33 ohms = 8,91 drop
  
* What is the voltage across each resistor
+
'''What is the voltage across each resistor'''
Voltage drop is 8,9
+
:Voltage drop is 8,9
* What is the current through each resistor
+
'''What is the current through each resistor'''
9 amp
+
:9 amp
* What happens to the current and voltage if you double the resistor value of one resistor
+
'''What happens to the current and voltage if you double the resistor value of one resistor'''
Current stays the same and voltage doubles
+
:Current stays the same and voltage doubles
* What happens to the current and voltage if you half the resistor value of one resistor
 

Revision as of 13:20, 25 May 2015

HOMEWORK -1-

Circuit with one resistor

Brown, green, red, gold

First digit=1, second digit=5, multiplier 100, tolerance= 5%
15x100=1500 1,5 k ohms
R = V/I 9 V : 6 I = 1,5 kilo ohms
I = V/R 9 V : 1,5 ohms = 6 ampere
V = IxR 6 x 1,5 = 9 V
6 x 1,5 ohms = 9
9 volt battery

What is the voltage across the resistor

Voltage drop is 0,1,4 V

What is the current through the resistor

6 amp

What happens to the current and voltage if you double the resistor value

Current stays the same and voltage doubles

What happens to the current and voltage if you half the resistor value

Current stays the same and voltage is split in half


Circuit with two resistors

Brown, black, orange, gold

First digit=1, second digit=0, multiplier 1, tolerance= 5%
1. x100=10 k ohms
9 volt battery
R = V/I 9 V : 6 I = 10 kilo ohms
I = V/R 9 V : 10 ohms = 0,9 ampere
V = IxR 6 x 1,5 = 9 V
Voltage drop = 0,9 x 10 ohms = 9

What is the voltage across each resistor

Voltage drop is 9

What is the current through each resistor

9 amp

What happens to the current and voltage if you double the resistor value of one resistor

Current stays the same and voltage doubles


Circuit with three or more series resistors

Orange, orange, orange, gold

First digit=3, second digit=3, multiplier 1, tolerance= 5%
3.3x100=33 k ohms
9 volt battery
R = V/I 9 V : 0,27 I = 33 kilo ohms
I = V/R 9 V : 33 ohms = 0,27 ampere
V = IxR 0,27 x 33 = 9 V
Voltage drop = 0,27 x 33 ohms = 8,91 drop

What is the voltage across each resistor

Voltage drop is 8,9

What is the current through each resistor

9 amp

What happens to the current and voltage if you double the resistor value of one resistor

Current stays the same and voltage doubles