COMEDK · Physics · 17. Electrostatics
Work done in moving a charge of \(25 \mathrm{C}\) is \(50 \mathrm{~J}\). Calculate potential difference, between two points.
- A \(0.5 \mathrm{~V}\)
- B \(1 \mathrm{~V}\)
- C \(2 \mathrm{~V}\)
- D \(2.5 \mathrm{~V}\)
Answer & Solution
Correct Answer
(C) \(2 \mathrm{~V}\)
Step-by-step Solution
Detailed explanation
The potential difference \(V\) between two points is defined as the work done \(W\) in moving a unit positive charge \(q\) from one point to another. The formula is given by \(V = \dfrac{W}{q}\). Given values are \(W = 50 \text{ J}\) and \(q = 25 \text{ C}\). Substituting these…
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
- The stress verses strain graph of four metals A,B,C and D are as shown. Which of the graph represent the metal having greatest Young's modulus?
COMEDK 2025 Easy - One end of a nylon rope of length 1 and diameter 10 mm is fixed to free limb. A monkey weighing 100 N jumps to catch the free end and stays there. The change in diameter of the rope is (Young's modulus of the wire is Y and Poisson Ratio is \(\sigma\) )COMEDK 2025 Medium
- In a common base circuit, collector base voltage changes by \(0.6 \mathrm{~V}\) and collector current changes by \(0.02 \mathrm{~mA}\). Then, the output resistance isCOMEDK 2014 Medium
- A uniformly charged solid sphere of radius \(\mathrm{R}\) has potential \(\mathrm{V}_0\) (measured with respect to infinity) on its surface. For this sphere the equipotential surfaces with potentials \(\dfrac{3 \mathrm{~V}_0}{2}, \dfrac{\mathrm{V}_0}{1}, \dfrac{3 \mathrm{~V}_0}{4}\) and \(\dfrac{\mathrm{V}_0}{4}\) have radius \(\mathrm{R}_1, \mathrm{R}_2, \mathrm{R}_3\) and \(\mathrm{R}_4\) and respectively, thenCOMEDK 2024 Hard
- Which of the following statement is wrong regarding the photo electric effect.COMEDK 2025 Easy
- The velocity of a body moving in a viscous medium is given by \(v = \dfrac{A}{B+C}\left[1 - e^{\frac{-t}{B}}\right]\) where t is time; dimensions of A and C areCOMEDK 2026 Medium
More PYQs from COMEDK
- \(15 \mathrm{~g}\) of \(\mathrm{CaCO}_3\) completely reacts withCOMEDK 2023 Medium
- The point on the line \(x+y=4\) that lie at a unit distance from the line \(4 x+3 y=10\) isCOMEDK 2025 Medium
- The total number of degrees of freedom associated with \(2 \mathrm{~cm}^3\) of Nitrogen gas at normal temperature and pressure is:
[Given Avogadro number as ' N ' ]COMEDK 2025 Medium - The heat of combustion of carbon to \(\text{CO}_2\) is -393.5 kJ \(\text{mol}^{-1}\).
The heat released on the formation of 35.2 g of \(\text{CO}_2\) by combustion of C is:COMEDK 2026 Easy - An organic compound [X] (Molecular formula \(\mathrm{C}_6 \mathrm{H}_{12} \mathrm{O}_2\) ) reacts with dil. \(\mathrm{H}_2 \mathrm{SO}_4\) to form an alcohol [B] and a carboxylic acid [C]. Reaction of compound \([\mathrm{B}]\) with Jones reagent yielded compound \([\mathrm{C}]\). When compound \([\mathrm{C}]\) was heated with \(\mathrm{P}_2 \mathrm{O}_5\) an Anhydride was formed. Compound \([\mathrm{X}]\) is ________.COMEDK 2025 Medium
- In a given circuit, the instantaneous values of the alternating voltage and current are \(V = 0.5\sin\left(80\pi t + \dfrac{\pi}{3}\right)\) volt and \(I = 0.5\sin(80\pi t)\) ampere respectively. Find the average power consumed in that circuit.COMEDK 2026 Easy