User:Meikebrand

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