Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET 2024
Exam
NEET
Year
2024
Subject
Physics
Chapter
Capacitance

NEET 2024 · Physics · Capacitance

A 12 pF capacitor is connected to a 50 V battery, the electrostatic...

A 12 pF capacitor is connected to a 50 V battery, the electrostatic energy stored in the capacitor in nJ is

Options

  1. A15
  2. B7.5
  3. C0.3
  4. D150

Correct answer

A. 15

Step-by-step solution

Electrostatic energy stored U=12CV2U=\frac{1}{2} C V^2 =12×12×10−12×(50)2=\frac{1}{2} \times 12 \times 10^{-12} \times(50)^2 =6×25×10−10=6 \times 25 \times 10^{-10} =15×10−9 J=15 \times 10^{-9} \mathrm{~J} =15 nJ=15 \mathrm{~nJ}
Practice Capacitance on Quantrex Academy →

More from Capacitance

A parallel plate capacitor of area A, plate separation d and capacitance C is filled with… MHT CET Medical 2026Three identical parallel plate air capacitors are connected in series to a battery of… MHT CET Medical 2026Four identical capacitors are joined in series, across a battery of 20\ V . The… MHT CET Medical 2026The equivalent capacitance between 'P' and 'Q' is [A-area of each plate, d-separation… MHT CET Medical 2026The air capacitor has a capacitance of 2μ F. Now the space between two plates of… MHT CET Medical 2026A parallel-plate air capacitor has a capacity ' C ', distance with a separation ' x ', a… MHT CET Medical 2026A series combination of 10 capacitors, each of value ' C_1 ' is charged by a source of… MHT CET Medical 2026Two capacitors of capacity C and C/3 are connected to a battery of voltage V as shown.… MHT CET Medical 2026 Full Capacitance list All NEET PYQs