Worksheet 8

What is the definition of electric current?

• The flow of electric charge through a conductor

• The resistance offered by a material to the flow of current

• The potential difference between two points

• The power consumed by an electrical device

According to Ohm's Law, what is the relationship between voltage (V), current (I), and resistance (R)?

Which of the following is a component of a series circuit?

• Multiple paths for current to flow

• A single path for current to flow

• A parallel connection of resistors

• A battery with no resistors

In a parallel circuit, how is the total resistance calculated?

• By adding the resistances of all components

• By multiplying the resistances of all components

• By taking the reciprocal of the sum of the reciprocals of each resistance

• By subtracting the smallest resistance from the largest

What is one advantage of parallel circuits over series circuits?

• They require less wiring

• They allow devices to operate independently

• They have a higher total resistance

• They are easier to design

Interpret the following schematic diagram: A circuit with a battery and two resistors in series. What happens to the current through the resistors?

• The current is divided equally between the resistors

• The current is the same through both resistors

• The current is zero through both resistors

• The current is different through each resistor

If a circuit has a total voltage of 12V and a total resistance of 4Ω, what is the current flowing through the circuit according to Ohm's Law?

• 2A

• 3A

• 4A

• 6A

In a series circuit with three resistors, if one resistor is removed, what happens to the circuit?

• The circuit continues to function normally

• The circuit becomes open and current stops flowing

• The circuit's resistance decreases

• The circuit's voltage increases

Why might a parallel circuit be preferred in household wiring?

• It reduces the risk of short circuits

• It ensures that if one device fails, others continue to work

• It minimizes the use of electrical components

• It increases the overall resistance

Analyze the following scenario: A parallel circuit with three branches, each with a different resistor. If one branch is removed, what happens to the total current in the circuit?

• The total current increases

• The total current decreases

• The total current remains the same

• The total current becomes zero