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In a circuit, a capacitor is charged and then discharged through a resistor. Wha

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Question: In a circuit, a capacitor is charged and then discharged through a resistor. What is the time constant of the circuit?

Options:

  1. RC
  2. C/R
  3. R/C
  4. 1/RC

Correct Answer: RC

Solution: 

The time constant (Ï„) of an RC circuit is given by Ï„ = R * C.

In a circuit, a capacitor is charged and then discharged through a resistor. Wha

Practice Questions

Q1
In a circuit, a capacitor is charged and then discharged through a resistor. What is the time constant of the circuit?
  1. RC
  2. C/R
  3. R/C
  4. 1/RC

Questions & Step-by-Step Solutions

In a circuit, a capacitor is charged and then discharged through a resistor. What is the time constant of the circuit?
  • Step 1: Identify the components in the circuit. You need a resistor (R) and a capacitor (C).
  • Step 2: Find the resistance value (R) of the resistor in ohms (Ω).
  • Step 3: Find the capacitance value (C) of the capacitor in farads (F).
  • Step 4: Use the formula for the time constant, which is Ï„ = R * C.
  • Step 5: Multiply the resistance (R) by the capacitance (C) to get the time constant (Ï„).
  • Time Constant – The time constant (Ï„) in an RC circuit is the product of resistance (R) and capacitance (C), indicating how quickly the capacitor charges or discharges.
  • RC Circuit Behavior – Understanding the behavior of resistors and capacitors in series and how they affect the charging and discharging process.
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