Current, Voltage, Resistance Scenarios Problems

A large flashlight that requires a 1.5 V battery. If the resistance of the light bulb is 3Ω, what is the current flowing through the light bulb?

• 0.5 A

• 1.5 A

• 2.0 A

• 4.5 A

The graph shows the variation in the current intensity, I, as a function of the potential difference (voltage), V, across a resistor.

• 0.05 Ohms

• 1 Ohms

• 5 Ohms

• 20 Ohms

In the laboratory, a student was asked to measure resistance and potential difference in an electrical circuit. The circuit requires 0.5 A of current to function optimally. He has experimented with four different resistors and recorded the data in the table. Which resistor is the most optimal (lowest resistance)?

• Resistor 1

• Resistor 2

• Resistor 3

• Resistor 4

What is the current flowing in resistor 3?

• 1 A

• 0.25 A

• 0.5 A

• 2 A

What is the current flowing in resistor 1?

• 1 A

• 0.25 A

• 0.5 A

• 0.2 A

In which of the following electrical circuits is electron flow NOT possible?

• A) 1 and 2

• B) 1 and 3

• C) 2 and 3

• D) 2 and 4

Which of the components depicted by the symbols is used to STOP the electron flow in an electrical circuit?

• a

• b

• c

• d

Which of the following is true about this circuit

• S1 and S2 are both closed

• L1 is off and S2 is closed

• S2 is open and L2 is off

• L1 is off and L2 is on

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Which of the following is parallel?

• 1 and 3

• 2 and 3

• 2 and 4

• 1 and 4

Which of the following is series?

• 1 and 3

• 2 and 3

• 2 and 4

• 1 and 4