AP EAMCET · PHYSICS · Electrostatics
The distribution of some charges on two Gaussian surfaces \(A\) and \(B\) are as shown in the figure. If \(\phi_A\) and \(\phi_B\) are electric fluxes linked with the surfaces \(A\) and \(B\) respectively. then \(\frac{\phi_A}{\phi_B}=\)

- A \(-\frac{1}{5}\)
- B \(-3\)
- C \(-\frac{3}{2}\)
- D \(-\frac{3}{4}\)
Answer & Solution
Correct Answer
(D) \(-\frac{3}{4}\)
Step-by-step Solution
Detailed explanation
The distribution of charges on two Gaussian surfaces \(A\) and \(B\) are shown below Flux through a closed surface, \(\phi=\frac{q_{\text {net }}}{\varepsilon_0}\) \(q_{\text {net }}=\) net charge enclosed by the surface Here, \(\left(q_{\text {net }}\right)_A=\) charge enclosed…
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
- When a parallel plate capacitor is charged up to 95 V , its capacitance is C. If a dielectric slab of thickness 2 mm is inserted between plates and distance between the plates is increased by 1.6 mm such that the same potential difference is maintained. The dielectric constant of the material (slab) isAP EAMCET 2024 Medium
- An object is thrown directly away from the surface of the earth with an initial speed \(v\). The object reaches upto a height of \(\frac{4}{5} R_E\) from earth's surface, where \(R_E\) is radius of the earth. If the escape velocity of the object is \(v_E\) then the value of \(\frac{v}{v_E}\) isAP EAMCET 2022 Easy
- In the given circuit, the potential difference across \(5 \mu \mathrm{~F}\) capacitor is
AP EAMCET 2024 Easy - A common emitter transistor amplifier has a current gain of 50 . If the load resistance is \(4 \mathrm{k} \Omega\) and input resistance is \(500 \Omega\), the voltage gain of the amplifier isAP EAMCET 2002 Medium
- A long wire lies along \(X\)-axis and carries a current of \(40 \mathrm{~A}\) in positive \(x\)-direction. A second long wire is perpendicular to the \(x y\)-plane, passes through point \((3.0 \mathrm{~m}) \hat{j}\) and carries a current along positive \(z\)-direction. If the magnitude of resultant magnetic field at the point \((2.0 \mathrm{~m}) \hat{j}\) \(R=5 \times 10^{-6} \mathrm{~T}\) then the current in the second wire is
(Permeability of free space, \(\mu_0=4 \pi \times 10^{-7}\) SI unit)AP EAMCET 2022 Hard - Two persons \(A\) and \(B\) are located in \(X-Y\) plane at the points \((0,0)\) and \((0,10)\) respectively. (The distances are measured in MKS unit). At a time \(t=0\), they start moving simultaneously with velocities \(\quad \overrightarrow{\mathbf{v}}_A=2 \mathbf{j} \mathrm{ms}^{-1} \quad\) and \(\quad \overrightarrow{\mathbf{v}}_B=2 \hat{\mathbf{i}} \mathrm{ms}^{-1}\) respectively. The time after which \(A\) and \(B\) are at their closest distance isAP EAMCET 2009 Hard
More PYQs from AP EAMCET
- AP EAMCET 2021 Medium
- Suppose the pairs of straight lines \(2 x^2+a x y+3 y^2=0\) and \(2 x^2+b x y-3 y^2=0\) are such that they have one common line with the other two remaining perpendicular. Then the values of \(a\) and \(b\) respectively areAP EAMCET 2022 Medium
- \(\sum_{k=1}^{2 n+1}(-1)^{k-1} \cdot k^2\) equals toAP EAMCET 2014 Medium
- In the given electrical circuit, if the switch \(S\) is closed then the maximum energy stored in the inductors is:
AP EAMCET 2019 Easy - Three charges \(+5 q, Q\) and \(-2 q\) are kept along a straight line in the same order such that, \(+5 q\) and \(-2 q\) charges are at a distance of \(\frac{2 r}{3}\) and \(\frac{r}{3}\) from the charge \(Q\) respectively. If the net force on the charge \(-2 q\) is zero, then \(Q\) isAP EAMCET 2022 Easy
- The magnetic field due to current carrying circular loop of radius \(6 \mathrm{~cm}\) at a point on the axis at a distance of \(8 \mathrm{~cm}\) from centre is \(27 \mu \mathrm{T}\). The magnetic field at the centre of the current carrying loop is.AP EAMCET 2022 Medium