Need Now! QC 1.3a Electricity and Ohm's Law Calculations
#1 Voltage (V) can be described as... *
A) a material that allows electricity to flow easily through a circuit.
B) the opposition to the flow (slows the flow) of electrons through the circuit.
C) the pressure/force that pushes the electrons through the circuit.
D) the rate (speed) of flow of electrons through the circuit.
#2 Which of the following accurately represents Ohm's Law and the relationships that exists in an electrical circuit? (Choose ALL correct answers.) *
A) When voltage increases, current increases.
B) When voltage increases, current decreases.
C) When resistance increases, current decreases
D) When resistance increases, current increases
#3 Resistance (R) in a circuit can be described as... *
A) a material that allows electricity to flow easily through a circuit.
B) the pressure/force that pushes the electrons through the circuit.
C) the opposition to the flow (slows the flow) of electrons through the circuit.
D) the rate (speed) of flow of electrons through the circuit.
#4 Current (I) in a circuit can be described as... *
A) a material that allows electricity to flow easily through a circuit.
B) the pressure/force that pushes the electrons through the circuit.
C) the opposition to the flow (slows the flow) of electrons through the circuit.
D) the rate (speed) of flow of electrons through the circuit.
#5 A resistance of 30 Ohms is placed in a circuit with a 90 volt battery. What current flows in the circuit? *
A) 3 A
B) 2700 A
C) 0.3 A
D) 110 A
#6 A transistor radio uses 2 amps of current when it is run by a 9 volt battery. What is the resistance in the radio circuit? *
A) 18 Ω
B) 4.5 Ω
C) 0.22 Ω
D) 11 Ω
#7 A resistance of 60 ohms allows 0.4 amps of current to flow when it is connected across a battery. What is the voltage of the battery? *
A) 0.007 V
B) 150 V
C) 60.4 V
D) 24 V
#8 A resistor is placed in a circuit. The voltage of the circuit is changed and the current is measured. The data collected is shown in the graph below. Determine the resistance *
A) 0.5 Ω
B) 3 Ω
C) 1 Ω
D) 2 Ω
#9 A student connects 6 AA batteries (1.5 V each) in a series to light up a light bulb. The circuit has a resistance of 3 Ω. How much current flows through the circuit? *
A) 0.5 A
B) 3 A
C) 11 A
D) 27 A
#10 Choose the graph below that demonstrates Ohm's Law? (Be careful to check the labels of the axes.) *
A) Circuit A
B) Circuit B
C) Circuit C
D) Circuit D