11.1 Circuit Elements and Their Properties

• Ohm's Law describes the relationship between voltage, current, and resistance
• Passive circuit elements include voltage and current sources.

  False
• Passive circuit elements require an external power source to function.

  False
• Ohm's Law states that the voltage across a resistor is inversely proportional to the current.

  False
• Arrange the charging and discharging phases of a capacitor in the correct order:

  1️⃣ Charging: Accumulates charge when connected to a voltage source

  2️⃣ Discharging: Releases stored charge through a resistor
• Capacitance is measured in Farads.


  True
• Resistors, capacitors, and inductors are main circuit elements.


  True
• Inductance is the property of storing energy in a magnetic field
• Arrange the three main passive circuit elements in order of their primary function:

  1️⃣ Resistor: Resists current flow

  2️⃣ Capacitor: Stores electrical energy

  3️⃣ Inductor: Stores magnetic energy
• Match the property of a resistor with its description:

  Resistance ↔️ Opposition to current flow

  Tolerance ↔️ Accuracy of resistance value

  Power Rating ↔️ Maximum power a resistor can dissipate
• The capacitance of a capacitor is calculated by dividing the stored charge by the voltage.


  True
• What type of energy does a capacitor store?

  Electrical energy
• The capacitance formula is C = Q/V
• A resistor with 100 Ω connected to 12 V has a current of 0.12 A
• What is the unit of capacitance?

  Farads
• A 10 μF capacitor is charged to 50 V. How much charge does it store?

  $5 \times 10^{ - 4} C$
• Inductive reactance opposes changes in current flow.

  True
• What is an example of a passive circuit element?

  Resistor
• What is the function of a capacitor in a circuit?

  Stores electrical energy
• Circuit elements are basic components of electrical circuits
• Capacitors store electrical energy.


  True
• Match the circuit element with its unit:

  Resistor ↔️ Ohms (Ω)

  Capacitor ↔️ Farads (F)

  Inductor ↔️ Henries (H)

  Voltage Source ↔️ Volts (V)
• Resistors are characterized by their resistance, measured in ohms
• Capacitance is the ability of a capacitor to store electrical charge
• A 10 μF capacitor charged to 50 V stores 5 × 10$^ - 4$ C
• Match the circuit element with its property:

  Resistor ↔️ Resists current flow

  Capacitor ↔️ Stores electrical energy

  Inductor ↔️ Stores magnetic energy
• Ohm's Law states that voltage equals current times resistance.

  True
• In what unit is charge measured?

  Coulombs (C)
• When charging, a capacitor accumulates charge until it equals the source voltage.


  True
• What is the formula for inductive reactance?

  $X_{L} =$$2 \pi f L$
• Active circuit elements generate energy
• Match the feature with its correct circuit element type:

  Energy Generation ↔️ Active

  Ohm's Law ↔️ Passive
• A switch controls the flow of current in a circuit.

  True
• What happens to a capacitor when connected to a voltage source?

  It charges
• What do inductors store?

  Magnetic energy
• The formula for Ohm's Law is V = IR
• The capacitance formula is C = Q/V
• Inductance is measured in henries
• An inductor has an inductance of 5 H and carries a current of 2 A. Calculate the stored energy.

  $10 J$
• Passive circuit elements generate energy.

  False