What is the final voltage across a capacitor after it has been fully charged in

Practice Questions

Q1
What is the final voltage across a capacitor after it has been fully charged in an RC circuit?
  1. 0V
  2. V0
  3. V0/2
  4. V0/e

Questions & Step-by-Step Solutions

What is the final voltage across a capacitor after it has been fully charged in an RC circuit?
  • Step 1: Understand what an RC circuit is. An RC circuit consists of a resistor (R) and a capacitor (C) connected to a voltage source.
  • Step 2: Know that when the circuit is powered, the capacitor starts charging.
  • Step 3: Realize that the charging process takes time, and the capacitor will not be fully charged immediately.
  • Step 4: Understand that a capacitor is considered fully charged when it can no longer accept more charge from the voltage source.
  • Step 5: Remember that the final voltage across the capacitor when it is fully charged is equal to the voltage of the power supply (V0).
  • Step 6: Conclude that the final voltage across the capacitor is V0.
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