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Capacitor question

2025 · 22 Jan · Shift 1 · Q67
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  5. /2025 · 22 Jan · Shift 1 · Q67

Capacitor question

2025 · 22 Jan · Shift 1 · Q67

JEE MainPhysicsCapacitorMCQ+4 / −1
A parallel-plate capacitor of capacitance 40μ F40 \mu \mathrm{~F}40μ F is connected to a 100 V power supply. Now the intermediate space between the plates is filled with a dielectric material of dielectric constant K=2\mathrm{K}=2K=2. Due to the introduction of dielectric material, the extra charge and the change in the electrostatic energy in the capacitor, respectively, are
  1. A
    8 mC and 2.0 J
  2. B
    4 mC and 0.2 J
  3. C
    2 mC and 0.2 J
  4. D
    2 mC and 0.4 J
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