2.1.1 Electric Current

• What is electric current measured in?

  Amperes (A)
• Electric charge flows in a circuit due to a potential difference
• One ampere is equivalent to one coulomb of charge passing a given point per second.
• What is the definition of electric current?

  Flow of electric charge
• Electrons flow from the negative terminal to the positive terminal in a circuit.
• Match the aspect with the correct type of flow:

  Direction ↔️ Negative to Positive

  Type of Charge ↔️ Negative

  Physical Flow ↔️ Electrons
• Electric current is calculated using the formula $I =$$\frac{Q}{t}$
• What is the electric current if 12 coulombs of charge pass through a wire in 4 seconds?

  3 A
• Use the equation for electric current: I = $\frac{Q}{t}$
• Electric current is defined as the flow of electric charge per unit of time through a conductor.
• The unit of electric current is the ampere (A).
• If 12 coulombs of charge pass through a wire in 4 seconds, the electric current is 3 A.
• Match the quantity with its unit:

  Electric Current ↔️ Ampere

  Electric Charge ↔️ Coulomb

  Time ↔️ Second
• Electric current is the flow of electric charge through a conductor, measured in amperes (A).
• Electric charge flows in a circuit due to a potential difference.
• Order the differences between electron flow and conventional current:

  1️⃣ Electron Flow: Negative to Positive

  2️⃣ Electron Flow: Negative Charge

  3️⃣ Electron Flow: Physical Flow of Electrons

  4️⃣ Conventional Current: Positive to Negative

  5️⃣ Conventional Current: Positive Charge

  6️⃣ Conventional Current: Imaginary Positive Particles
• One ampere is equivalent to one coulomb of charge passing a given point per second.
• One ampere is defined as one coulomb per second.
• The equation for electric current is I = $\frac{Q}{t}$
• If 20 coulombs of charge pass through a wire in 5 seconds, the electric current is 4 A.
• Match the quantity with its symbol and unit:

  Electric Current ↔️ I</latex>, A

  Electric Charge ↔️ $Q$, C

  Time ↔️ $t$, s
• A higher potential difference in a circuit results in increased current.