JEE Mains · Physics · STD 12 - 2. Electric potential and capacitance
Given below are two statements. Statement \(I\) : Electric potential is constant within and at the surface of each conductor. Statement \(II\) : Electric field just outside a charged conductor is perpendicular to the surface of the conductor at every point. In the light of the above statements, choose the most appropriate answer from the options give below.
- A Both statement \(I\) and statement \(II\) are correct
- B Both statement \(I\) and statement \(II\) are incorrect
- C Statement \(I\) is correct but statement \(II\) is incorrect
- D Statement \(I\) is incorrect but and statement \(II\) is correct
Answer & Solution
Correct Answer
(A) Both statement \(I\) and statement \(II\) are correct
Step-by-step Solution
Detailed explanation
Statement \(- I\), true as body of conductor acts as equipotential surface. Statement \(-2\) True, as conductor is equipotential. Tangential component of electric field should be zero. Therefore electric field should be perpendicular to surface.
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Physics
- Three identical coils \(C _1, C _2\) and \(C _3\) are closely placed such that they share a common axis.\(C _2\) is exactly midway.\(C _1\) carries current I in anti-clockwise direction while \(C _3\) carries current I in clockwise direction. An induced current flows through \(C _2\), will be in clockwise direction whenJEE Mains 2026 Medium
- A ball is projected from the ground with a speed \(15 \,ms ^{-1}\) at an angle \(\theta\) with horizontal so that its range and maximum height are equal, then \(tan\,\theta\) will be equal toJEE Mains 2022 Medium
- An engine approaches a hill with a constant speed. When it is at a distance of \(0.9\, km\), it blows a whistle whose echo is heard by the driver after \(5\, seconds\). If the speed of sound in air is \(330\, m/s\), then the speed of the engine is .... \(m/s\)JEE Mains 2013 Easy
- Given below are two statements: one is labelled as Assertion \(A\) and the other is labelled as Reason \(R\). Assertion \(A\) : The photoelectric effect does not take place, if the energy of the incident radiation is less than the work function of a metal. Reason \(R\) : Kinetic energy of the photoelectrons is zero, if the energy of the incident radiation is equal to the work function of a metal. In the light of the above statements, choose the most appropriate answer from the options given belowJEE Mains 2022 Medium
- A vessel contains \(0.15\) m\(^3\) of a gas at pressure \(8\) bar and temperature \(140°\)C with \(c_p = 3R\) and \(c_v = 2R\). It is expanded adiabatically till pressure falls to \(1\) bar. The work done during this process is _______ kJ. (\(R\) is gas constant)JEE Mains 2026 Hard
- A plane electromagnetic wave propagates along the \(+x\) direction in free space. The components of the electric field, \(\vec{E}\) and magnetic field, \(\vec{B}\) vectors associated with the wave in Cartesian frame areJEE Mains 2025 Easy
More PYQs from JEE Mains
- Coasider a cuboid of sides \(2 x , 4 x\) and \(5 x\) and a closed hemisphere of radius \(r\). If the sum of their surface areas is a constant \(k\), then the ratio \(x: r\), for which the sum of their volumes is maximum, isJEE Mains 2022 Hard
- A charge \('q'\) is placed at one corner of a cube as shown in figure. The flux of electrostatic field \(\overrightarrow{ E }\) through the shaded area is ...... .
JEE Mains 2021 Hard - Every planet revolves around the sun in an elliptical orbit : \(A.\) The force acting on a planet is inversely proportional to square of distance from sun. \(B.\) Force acting on planet is inversely proportional to product of the masses of the planet and the sun \(C.\) The centripetal force acting on the planet is directed away from the sun. \(D.\) The square of time period of revolution of planet around sun is directly proportional to cube of semi-major axis of elliptical orbit. Choose the correct answer from the options given below :JEE Mains 2023 Medium
- The sum of the abosolute maximum and minimum values of the function \(f(x)=\left|x^2-5 x+6\right|-3 x+2\) in the interval \([-1,3]\) is equal to :JEE Mains 2023 Hard
- Let \(f(x)=\sin ^{-1} x\) and \(g(x)=\frac{x^{2}-x-2}{2 x^{2}-x-6} .\) If \(g(2)=\lim _{x \rightarrow 2} g(x)\), then the domain of the function \(fog\) is .... .JEE Mains 2021 Medium
- In the figure shown, what is the current (in Ampere) drawn from the battery ? You are given \(R_1 = 15\,\Omega \)\(,R _2 = 10\,\Omega ,\)\( R_3 = 20\,\Omega ,\)\( R_4 = 5\,\Omega ,\)\(R_5 = 25\,\Omega ,\)\(R_6 = 30\,\Omega , \)\(E = 15\,V\)
JEE Mains 2019 Medium