11.1 Circuit Elements and Their Properties

• A capacitor is a circuit element that opposes the flow of electric current.

  False
• A resistor opposes current flow, and its unit of measurement is ohms
• What is stored in a capacitor?

  Electric charge
• The resistance of a resistor is measured in ohms.

  True
• What equation describes Ohm's Law?

  $V =$$IR$
• Ohm's Law states that voltage equals current times resistance
• Resistors are used to regulate the flow of electric current in a circuit.


  True
• A resistor opposes the flow of electric current, and its key property is resistance
• Match the circuit element with its function:

  Resistor ↔️ Opposes current flow

  Capacitor ↔️ Stores electric charge

  Inductor ↔️ Stores energy in magnetic field
• Resistance is measured in units of ohms
• Which circuit element stores electric charge?

  Capacitor
• What is the unit of resistance?

  Ohms
• The formula for Ohm's Law is V = IR
• If a resistor with a resistance of 5 ohms has a current of 2 amps flowing through it, what is the voltage drop across the resistor?

  10 volts
• Ohm's Law allows us to calculate any one of the three quantities if we know the other two
• What is the unit of inductance?

  Henries (H)
• The energy stored in an inductor is calculated using the formula $E =$$\frac{1}{2}LI^{2}$.


  True
• What are the basic components that make up an electric circuit called?

  Circuit elements
• The basic components that make up an electric circuit are called circuit elements
• What type of energy does an inductor store?

  Magnetic field energy
• The key property of a resistor is its resistance
• What is the unit of measurement for capacitance?

  Farads
• Match the circuit element with its function:

  Resistor ↔️ Opposes current flow

  Capacitor ↔️ Stores electric charge

  Inductor ↔️ Stores magnetic energy
• What does the symbol 'Ω' represent in circuit diagrams?

  Ohms
• The three main circuit elements that form the building blocks of electric circuits are resistors, capacitors, and inductors
• What is the key property of a resistor?

  Resistance
• Ohm's Law states that voltage equals current times resistance


  True
• What property characterizes a capacitor?

  Capacitance
• Capacitance is measured in units of farads
• Capacitors store energy in an electric field

  True
• What type of field do inductors use to store energy?

  Magnetic field
• Inductance is measured in units of henries
• The energy stored in an inductor is proportional to the square of the current


  True
• Match the circuit element with its symbol:

  Resistor ↔️ <img src="resistor_symbol.png" alt="Resistor Symbol">

  Capacitor ↔️ <img src="capacitor_symbol.png" alt="Capacitor Symbol">

  Inductor ↔️ <img src="inductor_symbol.png" alt="Inductor Symbol">

  Power Source ↔️ <img src="power_source_symbol.png" alt="Power Source Symbol">
• What are the basic components of an electric circuit called?

  Circuit elements
• A resistor is a component that opposes the flow of electric current
• A power source provides electrical energy to a circuit


  True
• What is the unit of resistance?

  Ohms (Ω)
• Ohm's Law relates voltage, current, and resistance
• Ohm's Law states that voltage equals current multiplied by resistance.


  True