Question:
Calculate the area of the plates of a one farad parallel plate capacitor if separation between plates is 1 mm and plates are in vacuum
Calculate the area of the plates of a one farad parallel plate capacitor if separation between plates is 1 mm and plates are in vacuum
Show Hint
Large capacitance requires very large plate area.
Updated On: Mar 17, 2026
- 18×10⁸ m²
- 0.3×10⁸ m²
- 1.3×10⁸ m²
- 1.13×10⁸ m²
Hide Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Step 1: Capacitance of parallel plate capacitor, C=(₀ A)/(d)
Step 2: Substituting values, 1=8.85×10⁻¹²A10⁻³
Step 3: A≈1.13×10⁹ m²≈18×10⁸ m²
Was this answer helpful?
0
0
Top Questions on Magnetism and matter
- A plane electromagnetic wave is moving in free space with velocity \[ c=3\times10^{8}\ \text{m/s} \] and its electric field is given as \[ \vec E = 54\sin(kz-\omega t)\,\hat{j}\ \text{V/m}, \] where \(\hat{j}\) is the unit vector along the \(y\)-axis. The magnetic field \(\vec B\) of the wave is:
- JEE Main - 2026
- Physics
- Magnetism and matter
- A long cylindrical conductor with large cross section carries an electric current distributed uniformly over its cross-section. Magnetic field due to this current is:
[A.] maximum at either end of the conductor
[B.] maximum at the axis of the conductor and minimum at the midpoint
[C.] minimum at the surface of the conductor
[D.] minimum at the axis of the conductor
[E.] same at all points in the cross-section of the conductor
Choose the correct answer from the options given below:- JEE Main - 2026
- Physics
- Magnetism and matter
- An inductor stores \(16\,\text{J}\) of magnetic field energy and dissipates \(32\,\text{W}\) of thermal energy due to its resistance when an alternating current of \(2\,\text{A}\) (rms) and frequency \(50\,\text{Hz}\) flows through it. The ratio of inductive reactance to resistance is _______. \((\pi=3.14)\) Given: \[ U=16\,\text{J},\quad P=32\,\text{W},\quad I=2\,\text{A},\quad f=50\,\text{Hz} \]
- JEE Main - 2026
- Physics
- Magnetism and matter
- If a straight current-carrying wire of linear density $0.12~\text{kg/m$ is suspended in mid-air by a uniform horizontal magnetic field of $0.5~\text{T}$ normal to the length of the wire, then the current through the wire is (Neglect earth’s magnetic field)}
- AP EAPCET - 2025
- Physics
- Magnetism and matter
- A sample of a ferromagnetic iron in the shape of a cube of side 1.0 μm contains $8.7 \times 10^{29}$ atoms per cubic meter and the magnetic dipole moment of each iron atom is $9.3 \times 10^{-29}$ Am². Then the maximum possible magnetic dipole moment (in Am²) of the sample is nearly
- AP EAPCET - 2025
- Physics
- Magnetism and matter
View More Questions
Questions Asked in BITSAT exam
- Calculate the de Broglie wavelength of an electron moving with a given velocity.
- BITSAT - 2025
- Wave Optics
- What is the dot product of the vectors \( \mathbf{a} = (2, 3, 1) \) and \( \mathbf{b} = (1, -1, 4) \)?
- BITSAT - 2025
- Vector Algebra
- How many grams of $ \mathrm{Al_2(SO_4)_3} $ are required to produce 10 L of a 0.5 M solution? (Molar mass = 342 g/mol)
- BITSAT - 2025
- Mole concept and Molar Masses
- What is the unit of electric field?
- BITSAT - 2025
- Electrostatics
- Which of the following molecules has a linear shape?
- BITSAT - 2025
- Chemical bonding and molecular structure
View More Questions