2.1.1 Electric Current

• Electric current is the rate of flow of electric charge
• One ampere is equal to one coulomb of charge passing a point per second.


  True
• What is the direction of conventional current in a circuit?

  Positive to negative
• The direction of electron flow is from the negative terminal to the positive terminal.
• Conventional current is commonly used in circuit diagrams.


  True
• The standard unit for measuring electric current is the ampere
• Conventional current is defined as the direction that positive charge would flow in a circuit
• What is the direction of electron flow in a circuit?

  Negative to positive
• How is one ampere defined?

  One coulomb per second
• What law describes the relationship between current, voltage, and resistance?

  Ohm's Law
• Increasing voltage in a circuit increases current.


  True
• If resistance increases from 4 ohms to 8 ohms and voltage is constant, the current halves
• What is the standard unit for measuring electric current?

  Ampere
• The direction of electric current is the direction in which positive charge would flow if it were free to move
• Electron flow is in the same direction as conventional current.

  False
• Match the aspect with its definition:

  Conventional Current ↔️ Direction positive charge would move

  Electron Flow ↔️ Direction electrons move
• Which type of charge carriers reflects the actual movement of electrons in a circuit?

  Electron flow
• What is electric current measured in?

  Amperes
• Conventional current flows from the positive terminal to the negative terminal.


  True
• Electron flow and conventional current flow in the same direction.

  False
• Electric current is the rate of flow of electric charge
• If 5 coulombs of charge flow past a point in 2 seconds, what is the current?

  2.5 amperes
• If voltage increases from 12V to 24V and resistance is constant, what happens to the current?

  It doubles