AP EAMCET · PHYSICS · Electrostatics
Assertion (A): In a region of constant potential, the electric field is zero and there can be no charge inside the region. Reason (R): According to Gauss law. charge inside the region should be zero if electric field is zero.
- A Both (A) and (R) are true: (R) is correct explanation of (A)
- B Both (A) and (R) are true; (R) is not correct explanation of (A)
- C (A) is true, (R) is false
- D (A) is false, (R) is true
Answer & Solution
Correct Answer
(B) Both (A) and (R) are true; (R) is not correct explanation of (A)
Step-by-step Solution
Detailed explanation
For Assertion, Potential difference is given by dV=-E→·dr→, If E→ is zero, the potential will remain constant. For Reason, If in a region electric field is zero, net flux through any closed surface in that region will be zero. Therefore, if electric field…
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
- Power radiated by a black body at temperature \(T_1\) is \(P\) and it radiates maximum energy at a wavelength \(\lambda_1\). If the temperature of the black body is changed from \(T_1\) to \(T_2\), it radiates maximum energy at a wavelength \(\frac{\lambda_1}{2}\). The power radiated at \(T_2\) isAP EAMCET 2012 Easy
- A body of mass \(1 \mathrm{~kg}\) is moving with a velocity \(10 \mathrm{~ms}^{-1}\) due to a constant force on a horizontal rough surface having coefficient of kinetic friction 0.4 . If the constant force is removed, the body comes to rest in a time (Acceleration due to gravity \(=10 \mathrm{~ms}^{-2}\) )AP EAMCET 2023 Medium
- A hydrogen atom at the grotund level absorbs a photon and is excited to level. The potential energy of the electron in the excited state isAP EAMCET 2022 Easy
- In the circuit shown in figure, if the point \(R\) is earthed and point \(P\) is given a potential of \(+1800 \mathrm{~V}\), then charges on \(C_2\) and \(C_3\) are respectively
AP EAMCET 2018 Medium - Two plates of same area are placed in contact. Their thickness as well as their thermal conductivities are in the ratio \(2: 3\). The outer surface of one plate is maintained at \(10^{\circ} \mathrm{C}\) and that of the other at \(0^{\circ} \mathrm{C}\). Temperature at the common surface isAP EAMCET 2021 Medium
- In an AC circuit, the current flowing is and the potential difference is . The power consumption is equal toAP EAMCET 2020 Medium
More PYQs from AP EAMCET
- A body is projected vertically upwards from the surface of the earth with a velocity sufficient to carry it to infinity. The time taken by it to reach a height of three times the radius of the earth is (acceleration due to gravity \(=9.8 \mathrm{~ms}^{-2}\) and radius of the earth \(=6400 \mathrm{~km}\) )AP EAMCET 2018 Medium
- The area of the triangle formed by the tangent to the curve \(x y=\mathrm{a}^2\) at \(\left(x_1, y_1\right)\) on it and the axes isAP EAMCET 2022 Medium
- \(\frac{1+\cos \theta-\sin \theta}{1+\cos \theta+\sin \theta}+\frac{1+\cos \theta+\sin \theta}{1+\cos \theta-\sin \theta}=\)AP EAMCET 2023 Hard
- If the mean and variance of a binomial distribution are 4 and 2 respectively, then the probability of 2 successes of that binomial variate \(X\), isAP EAMCET 2016 Medium
- \(\operatorname{sech}^{-1}(\sin \theta)\) is equal toAP EAMCET 2007 Medium
- A transformer works on the principle ofAP EAMCET 2021 Easy