11.1 Circuit Elements and Their Properties

• Circuit elements work together to allow the flow and control of electric current in a circuit.


  True
• The inductance of an inductor is measured in henries
• The resistor opposes the flow of electric current
• The resistance of a resistor is measured in ohms
• The inductance of an inductor is measured in henries
• The energy stored in an inductor is proportional to the square of the current.


  True
• What is the primary property of an inductor?

  Inductance
• Circuit diagrams use symbols to represent different components.


  True
• The resistance of a resistor is measured in ohms
• The energy stored in a capacitor is proportional to the square of the voltage
• Capacitors store energy in the electric field between their plates.


  True
• Circuit diagrams use symbols to help identify components
• What is the formula for total resistance in a parallel circuit?

  $\frac{1}{R_{total}} =$$\frac{1}{R_{1}} +$$\frac{1}{R_{2}} +$$\dots +$$\frac{1}{R_{n}}$
• What is the formula for the total resistance in a series circuit?

  $R_{total} =$$R_{1} +$$R_{2} +$$\dots +$$R_{n}$
• Match the circuit element with its symbol:

  Resistor ↔️ Zigzag line

  Capacitor ↔️ Two parallel lines

  Inductor ↔️ Coiled line
• What happens to the voltage in a series circuit?

  Voltage divides across components
• Match the circuit element with its definition:

  Resistor ↔️ A component that opposes the flow of electric current

  Capacitor ↔️ A component that can store electric charge

  Inductor ↔️ A component that can store energy in a magnetic field

  Power Source ↔️ A component that provides electrical energy to the circuit

  Switch ↔️ A component that can open or close a circuit
• The capacitance of a capacitor is measured in farads
• Ohm's Law states that voltage (V) equals current (I) times resistance
• What is the primary function of a resistor in an electric circuit?

  Opposes current flow
• What does an inductor store energy in?

  Magnetic field
• Capacitance is calculated using the formula C = Q/V
• Capacitors store energy in an electric field between their plates.
• What is the formula for energy stored in an inductor?

  $E =$$\frac{1}{2}LI^{2}$
• What does a capacitor store in a circuit?

  Electric charge
• What is the unit of capacitance?

  Farad
• Capacitance is measured in units of farads
• Match the variable with its meaning in the energy storage formula of a capacitor:

  C ↔️ Capacitance

  V ↔️ Voltage
• What happens to the voltage in a series circuit?

  Voltage divides across components
• In a parallel circuit, each branch has the same voltage
• The energy stored in an inductor is proportional to the square of the current passing through it.


  True
• In a series circuit, the current is the same through each component.


  True
• The basic components that make up an electric circuit are called circuit
• The resistance of a resistor is measured in ohms
• Resistance is the degree to which a resistor opposes the flow of current.

  True
• Ohm's Law is given by the formula $V =$$IR$, where V is voltage, I is current, and R is resistance
• A capacitor stores energy in a magnetic field.

  False
• Match the property with its definition:

  Capacitance (C) ↔️ Measure of charge storage

  Energy Stored (E) ↔️ Amount of energy stored
• Match the property with its formula:

  Inductance (L) ↔️ L = NΦ/I

  Energy Stored (E) ↔️ E = (1/2)LI²
• Inductance is measured in henries