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An inductor of inductance and resistors of resistances and are connected to a battery of emf . The internal resistance of the battery is negligible. The switch is closed at . The potential drop across as a function of time is:
image

  1. A
  2. B
  3. C
  4. D

Solution & Step-by-step Explanation

image
The current in the branch with the inductor and resistor follows the equation:

The potential drop across the inductor is .


Given , , .

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An inductor of inductance and resistors of resistances and are connected to a battery of emf . The internal resistance of the battery is negligible. The switch is closed at . The potential drop across as a function of time is:
image
A
B
C
D

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