Difference between revisions of "User:Meikebrand"
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− | == HOMEWORK -1- == | + | == <font color="#FE2EF7"> HOMEWORK -1- </font> == |
'''''Circuit with one resistor''''' | '''''Circuit with one resistor''''' |
Revision as of 13:24, 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