2.3.3 Electric Circuits

• What is an electric circuit defined as?

  A closed path for current
• A power source in a circuit provides electrical energy
• In a series circuit, components are connected along a single path
• The total resistance in a series circuit is the sum of individual resistances
• What is an advantage of using a series circuit?

  Simple design
• Why is the total resistance lower in a parallel circuit compared to a series circuit?

  Multiple current paths
• In a parallel circuit, the current is divided among the paths.


  True
• What are two components commonly found in a parallel circuit example?

  Battery and light bulbs
• A power source in an electric circuit provides electrical energy
• Match the component with its example:

  Power Source ↔️ Battery

  Load ↔️ Light bulb

  Switch ↔️ Wall switch
• What happens to the current in a parallel circuit?

  It splits among branches
• In a parallel circuit, the current is split among branches.


  True
• The unit of current is amperes
• When resistors are in parallel, the total resistance is calculated using the reciprocal formula.
• In a parallel circuit, the voltage is the same across all branches.
• To prevent electric shock, always disconnect the power source.
• A conducting path in a circuit uses components like wires
• A switch in a circuit controls the flow of current by opening or closing the circuit.

  True
• The current remains the same throughout a series circuit.


  True
• Arrange the characteristics of a series circuit in the correct order:

  1️⃣ Current is constant

  2️⃣ Voltage is divided

  3️⃣ Resistance is additive

  4️⃣ If one component fails, the entire circuit stops
• In a series circuit, the total resistance is the sum of individual resistances
• The total current in a parallel circuit is the sum of currents in each path.

  True
• What are two components commonly found in a series circuit example?

  Battery and resistors
• What happens to the total resistance in a parallel circuit compared to individual resistances?

  It is lower
• What does Ohm's Law state about the relationship between current, voltage, and resistance?

  V = IR
• What is the status of current flow in a closed circuit?

  Yes
• What is the total resistance in a series circuit equal to?

  Sum of resistances
• Parallel circuits are more reliable than series circuits because if one component fails, others continue working.

  True
• In a parallel circuit, the total resistance is lower than any individual resistance
• The formula for Ohm's Law is V = IR.


  True
• The formula for total resistance in a series circuit is R_total = R_1 + R_2 + ... + R_n.

  True
• In a series circuit, the same current flows through all components.

  True
• What happens to the current flow in an open circuit?

  No current flows
• What is the role of conductors in an electric circuit?

  Allow current to flow
• How is voltage distributed in a series circuit?

  Voltage is divided
• If one component fails in a series circuit, the entire circuit stops working.

  True
• What is the main characteristic of voltage in a parallel circuit?

  Voltage is constant
• The total resistance in a parallel circuit is lower than any individual resistance
• In a parallel circuit, the voltage is the same across all components
• One advantage of parallel circuits is the independent operation of components