In a transient response of an RC circuit, what is the behavior of the current as

Practice Questions

Q1
In a transient response of an RC circuit, what is the behavior of the current as the capacitor charges?
  1. It remains constant
  2. It decreases exponentially
  3. It increases linearly
  4. It oscillates

Questions & Step-by-Step Solutions

In a transient response of an RC circuit, what is the behavior of the current as the capacitor charges?
  • Step 1: Understand that an RC circuit consists of a resistor (R) and a capacitor (C) connected in series.
  • Step 2: When the circuit is powered, the capacitor starts to charge up.
  • Step 3: Initially, when the capacitor is uncharged, the current is at its maximum value.
  • Step 4: As the capacitor charges, it stores electrical energy, which causes the current to decrease.
  • Step 5: The decrease in current is not linear; it follows an exponential pattern.
  • Step 6: Eventually, the capacitor becomes fully charged, and the current approaches zero.
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