AP EAMCET · PHYSICS · Electrostatics
In a region, the electric field is \((30 \bar{i}+40 \bar{j}) \mathrm{NC}^{-1}\). If the electric potential at the origin is zero, the electric potential at the point \((1 \mathrm{~m}, 2 \mathrm{~m})\) is
- A -60 V
- B -75 V
- C -55 V
- D -110 V
Answer & Solution
Correct Answer
(D) -110 V
Step-by-step Solution
Detailed explanation
\(\overrightarrow{\mathrm{E}}=(30 \hat{\mathrm{i}}+40 \hat{\mathrm{j}}) N \mathrm{NC}^{-1}, \mathrm{~V}(0,0)=0\) Now, \(d v=-\vec{E} \cdot d \vec{r}=-(30 \hat{i}+40 \hat{j})(d x \hat{i}+d y \hat{j}+d z \hat{k})\)…
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
- An infinite number of electric charges each equal to 5 nano-coulomb (magnitude) are placed along \(X\)-axis at \(x=1 \mathrm{~cm}, x=2 \mathrm{~cm}\), \(x=4 \mathrm{~cm}, x=8 \mathrm{~cm} . . .\). and so on. In this set up if the consecutive charges have opposite sign, then the electric field in newton/coulomb at \(x=0\) is :
\(\left(\frac{1}{4 \pi \varepsilon_0}=9 \times 10^9 \mathrm{~N}-\mathrm{m}^2 / \mathrm{C}^2\right)\)AP EAMCET 2003 Easy - Four projectiles are fired with the same velocities at angles and with the horizontal. The range of projectile will be largest for the one projected at angle _____.AP EAMCET 2020 Medium
- When 80 J of heat is absorbed by a monotonic gas, its volume increases by \(16 \times 10^{-5} \mathrm{~m}^3\). The pressure of the gas isAP EAMCET 2024 Easy
- A clock pendulum made of invar has a period of \(0.5 \mathrm{~s}\), at \(20^{\circ} \mathrm{C}\). If the clock is used in a climate where the temperature averages to \(30^{\circ} \mathrm{C}\), how much time does the clock lose in each oscillation? (For invar, \(\alpha=9 \times 10^{-7} /{ }^{\circ} \mathrm{C}\), \(g=\) constant \()\)AP EAMCET 2009 Easy
- If the earth stops rotating in its orbit about the sun, there will be variation in the weight of our bodies atAP EAMCET 2021 Easy
- An electromagnetic wave of frequency \(2 \mathrm{MHz}\) propagates from vacuum to a non-magnetic medium of relative permittivity 9 . Then its' wavelengthAP EAMCET 2018 Easy
More PYQs from AP EAMCET
- The transformed equation of \(x^2-y^2+2 x+4 y=0\) when the origin is shifted to the point \((-1,2)\) isAP EAMCET 2024 Easy
- If 12 dice are thrown at a time, then the probability that a multiple of 3 does not appear on any dice isAP EAMCET 2024 Medium
- A fan is rotating with an angular speed \(300 \mathrm{rpm}\). The fan is switched off, and it takes \(80 \mathrm{~s}\) to come to rest. Assuming constant angular deceleration, the number of revolutions made by the fan before it comes to rest isAP EAMCET 2022 Medium
- \(\int \frac{\cos x-\sin x}{5+\sin (2 x)} d x=\)AP EAMCET 2020 Easy
- The locus of the point of intersection of perpendicular tangents drawn to the circle \(x^2+y^2=10\) isAP EAMCET 2024 Easy
- Let \(\mathrm{f}(\mathrm{x})=3+2 \mathrm{x}\) and \(\mathrm{gn}(\mathrm{x})=(\) fo fo fo..... n times \()(\mathrm{x}) . \forall n \in \mathrm{~N}\) if all the lines \(y=g_{\mathrm{n}}(x)\) pass through a fixed point \((\alpha, \beta)\), then \(\alpha+\beta=\)AP EAMCET 2024 Hard