Charge, Current, Time

• What is the definition of charge?

  Charge is a measure of total current over time
• How is charge represented in equations?

  Charge is represented by the letter q
• In what unit is charge measured?

  Charge is measured in coulombs
• What is the equation for calculating charge?

  Charge equals current multiplied by time
• If a kettle draws a current of 12 amps for 50 seconds, how much charge passes through the wire?

  600 coulombs
• How do you rearrange the charge equation to find current?

  Current equals charge divided by time
• If a phone charger transfers 43.2 kilo coulombs over two hours, what current flowed through the wire?

  6 amps
• How do you convert kilo coulombs to coulombs?

  Multiply by 1000
• How do you convert hours to seconds?

  Multiply hours by 3600
• What is the total time in seconds for two hours?

  7200 seconds
• How do you calculate the current if you know the charge and time?

  Divide charge by time
• What is the relationship between charge, current, and time?

  • Charge (q) = Current (I) × Time (t)
  • Current is the flow of charge per unit time
  • Charge is the total amount of current over time
• How do you solve for current when given charge and time?

  1. Use the equation: I = q / t
  2. Convert units if necessary (e.g., kilo coulombs to coulombs)
  3. Plug in values and calculate