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NEET
Exam
NEET
Subject
Physics
Chapter
Capacitance

NEET · Physics · Capacitance

For the given input voltage waveform V _ in ( t ) , the output...

For the given input voltage waveform Vin(t),{V}_{\text{in}} ( t ) , the output voltage waveform V0(t),{V}_{0} ( t ) , across the capacitor is correctly depicted by :

For the given input voltage waveform V _ in ( t ) , the output voltage waveform V _ 0 ( t ) , across the capacitor is   

Options

  1. AA thin ring of radius R metre has charge q coulomb uniformly spread on it. The ring rotates about its axis with a
  2. BA thin ring of radius R metre has charge q coulomb uniformly spread on it. The ring rotates about its axis with a
  3. CA thin ring of radius R metre has charge q coulomb uniformly spread on it. The ring rotates about its axis with a
  4. DA thin ring of radius R metre has charge q coulomb uniformly spread on it. The ring rotates about its axis with a

Correct answer

A. A thin ring of radius R metre has charge q coulomb uniformly spread on it. The ring rotates about its axis with a

Step-by-step solution

For the given input voltage waveform V _ in ( t ) , the output voltage waveform V _ 0 ( t ) , across the capacitor is

When first pulse is applied the potential across capacitor is given by V=V0(1−e−tRC)V = {V}_{0}\left(1 - {e}^{- \dfrac{t}{RC}}\right)

When no pulse is applied, capacitor will discharge like V=V0′et/RCV = {V}_{0}^{'}{e}^{t / RC} when again, second pulse is applied V=V0(1−e−tRC)V = {V}_{0}\left(1 - {e}^{- \dfrac{t}{RC}}\right)

Using all three equations the correct graph is :

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