Asked in MDCAT Test Series — Electrostatics, Work and EnergyModerate

Time constant is defined as the time required by the capacitor:

Correct answer: A. To deposit 63% of the equilibrium charge

  • A. To deposit 63% of the equilibrium charge
  • B. To deposit 36% of the equilibrium charge
  • C. To deposit 63 times of the equilibrium charge
  • D. To deposit 36 times of the equilibrium charge

Explanation

q = q°(1-e-t/RC), in the equation RC is the time constant which denotes the time it takes for "63.2% of the charge to be deposited" on the plates of the capacitor q° is the maximum charge, t is the amount of time charged, and q is the charge on the plates, e = 2.718.

Last updated

About Capacitors

Capacitors store electric charge and energy in an electric field between conductors. Work includes capacitance, the relation Q = CV, dielectric materials, charging and discharging, energy formulas, and combinations of capacitors in series and parallel. Electric potential difference is needed to understand why charge and stored energy change.

Practise Electrostatics

831 free Electrostatics MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.

Exams that ask Physics questions like this

Physics is on 13 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.

Related questions