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JEE Main20249 Apr 2024Morning ShiftPhysicsCapacitanceActual

A bulb and a capacitor are connected in series across an ac supply. A dielectric is then placed between the plates of the capacitor. The glow of the bulb:

Options

  1. Aincreases
  2. Bdecreases
  3. Cremains same
  4. Dbecomes zero

Correct answer

A. increases

Step-by-step solution

Z= R^2+X_C^2 & X_C= 1 W C due to dielectric C X _ C Z So, current increases & thus bulb will glow more brighter.

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