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NEET 2012
Exam
NEET
Year
2012
Subject
Physics
Chapter
Alternating Current

NEET 2012 · Physics · Alternating Current

The current (I) in the inductance is varying with time according to...

The current (I)(I) in the inductance is varying with time according to the plot shown in figure. The current (I) in the inductance is varying with time according to the plot shown in figure. Which one of the
Which one of the following is the correct variation of voltage with time in the coil?

Options

  1. ABiological Oxygen Demand (BOD) is a measure of
  2. BBiological Oxygen Demand (BOD) is a measure of
  3. CBiological Oxygen Demand (BOD) is a measure of
  4. DBiological Oxygen Demand (BOD) is a measure of

Correct answer

D. Biological Oxygen Demand (BOD) is a measure of

Step-by-step solution

For inductor as we know induced voltage For t=0 to t=T/2V=LdIdt=Lddt(2I0tT)= constant, t=T / 2 V=L \frac{d I}{d t}=L \frac{d}{d t}\left(\frac{2 I_0 t}{T}\right)=\text{ constant, } For t=T/2 to t=TV=LdIdt(−2I0tT)=− constant \begin{aligned} t & =T / 2 \text{ to } t=T \\ V & =\frac{L d I}{d t}\left(\frac{-2 I_0 t}{T}\right)=- \text{ constant } \end{aligned} Therefore, answer will represents by graph (d).
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