Circuit Diagrams Practice
Honors Physics
Name_______________________
Problem A
Total resistance = _________________
Total current = ___________________
Current through 20Ω resistor = __________
Voltage across 19Ω resistor = __________
Power dissipated by 19Ω resistor = _______
Problem B
Total resistance = _________________
Total current = ___________________
Current through 8Ω resistor = __________
Problem C
Total resistance = _________________
Total current = ___________________
Voltage across 45Ω resistor = __________
Current through 90Ω resistor = __________
Power dissipated by 90Ω resistor = _______
Problem D
Total resistance = _________________
Total current = ___________________
Current through 6Ω resistor = __________
Problem E You are considering the purchase of an electrical heater over a gas fired heater. The specs on it say that it has a resistance of 3 Ω when it is operating on a 110 V outlet. Calculate the total energy the heater will use (in Joules AND in kw hr) if left on for 5 hours a day for 30 days. How much would this cost you a month if the power company is charging you $0.12 per kw hr? Problem F Determine the total resistance and the total current for the circuit pictured below. Problem G. As more identical resistors are added in series across a battery, the voltage across each resistor o Increases o Decreases o Remains the same Problem H Find the total resistance and total current in the following combination circuit. What is the total power dissipated by this circuit? How many kWh would this circuit consume if powered for 3 days? V = 125 V R1 = 125Ω
R2 = 25Ω
R3 = 100Ω
R4 = 30Ω
R5 = 65Ω
R6 = 20Ω Problem I In the circuit above, voltmeter V2 reads 80 V. What is the reading of voltmeter V1? o
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160 V 80 V 40 V 20 V Problem J Resistors R1 and R2 have an equivalent resistance of 6 Ω when connected in the circuit shown above. Which of the following could be the resistance of R1? Check all that apply. o 1 Ω o 5 Ω o 8 Ω o 4 Ω Problem K In which circuit shown above could the readings of the ammeter and voltmeters be correct? Check all that apply. o A o B o C o D Problem L Find the equivalent resistance and the total current in the circuit shown below.