Question: A 20 F capacitor is discharging through a 5 M resistor. Find the time it takes for the capacitor voltage to reach half its initial

  1. A 20 F capacitor is discharging through a 5 M resistor. Find the time it takes for the capacitor voltage to reach half its initial voltage.
  2. A 0.2 H ideal inductor is decaying through a resistor. It takes 2 ms for the inductor current to reach half its initial current. Find the resistance.
  3. If the potential energy of the coil is 50 J, find z.
  4. Find the torque on the coil.

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