JEE Mains · Physics · STD 12 - 3. current electricity
In a metallic conductor, under the effect of applied electric field, the free electrons of the conductor
- A drift from higher potential to lower potential.
- B move in the curved paths from lower potential to higher potential
- C move with the uniform velocity throughout from lower potential to higher potential
- D move in the straight line paths in the same direction
Answer & Solution
Correct Answer
(B) move in the curved paths from lower potential to higher potential
Step-by-step Solution
Detailed explanation
Move in curve path \(i = neAV _{ d }\)
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
- A rigid wire consists of a semicircular portion of radius \(R\) and two straight sections. The wire is partially immerged in a perpendicular magnetic field \(B=B_0\ {j}\) as shown in figure. The magnetic force on the wire if it has a current \(i\) is _______.
JEE Mains 2024 Hard - A block of mass \(m\) is placed on a surface having vertical cross section given by \(y=x^2 / 4\). If coefficient of friction is \(0.5\) , the maximum height above the ground at which block can be placed without slipping is _______.JEE Mains 2024 Hard
- Match List-I with List-II.
List-I List-II (A) Mass density (I) [ML2T-3] (B) Impulse (II) [MLT-1] (C) Power (III) [ML2T0] (D) Moment of inertia (IV) [ML-3T0]
Choose the correct answer from the options given below :JEE Mains 2025 Easy - Figure below shows a liquid being pushed out of the tube by a piston having area of cross section \(2.0\,cm ^2\). The area of cross section at the outlet is \(10\,mm ^2\). If the piston is pushed at a speed of \(4\,cm s ^{-1}\), the speed of outgoing fluidis \(.........\,cm s ^{-1}\).
JEE Mains 2023 Easy - From the photoelectric effect experiment, following observations are made. Identify which of these are correct \(A.\) The stopping potential depends only on the work function of the metal. \(B.\) The saturation current increases as the intensity of incident light increases. \(C.\) The maximum kinetic energy of a photo electron depends on the intensity of the incident light. \(D.\) Photoelectric effect can be explained using wave theory of light. Choose the correct answer from the options given below:JEE Mains 2023 Medium
- A circular hole of radius \(\frac{R}{4}\) is made in a thin uniform disc having mass \(M\) and radius \(R\), as shown in figure. The moment of inertia of the remaining portion of the disc about an axis passing through the point \(O\) and perpendicular to the plane of the disc is
JEE Mains 2017 Hard
More PYQs from JEE Mains
- The current flowing through \(R _2\) is:
JEE Mains 2023 Medium - Let \([t]\) be the greatest integer less than or equal to \(t\). Let \(A\) be the set of al prime factors of \(2310\) and \(f: A \rightarrow \mathbb{Z}\) be the function \(f(x)=\left[\log _2\left(x^2+\left[\frac{x^3}{5}\right]\right)\right]\). The number of one-to-one functions from \(A\) to the range of \(f\) is :JEE Mains 2024 Hard
- Let \(S\) be the focus of the hyperbola \(\frac{x^2}{3}-\frac{y^2}{5}=1\), on the positive \(\mathrm{x}\)-axis. Let \(\mathrm{C}\) be the circle with its centre at \(\mathrm{A}(\sqrt{6}, \sqrt{5})\) and passing through the point \(\mathrm{S}\). if \(\mathrm{O}\) is the origin and \(\mathrm{SAB}\) is a diameter of \(\mathrm{C}\) then the square of the area of the triangle \(OSB\) is equal to ...........JEE Mains 2024 Hard
- Let \(\overrightarrow{\mathrm{a}}=3 \hat{i}-\hat{j}+2 \hat{k}, \overrightarrow{\mathrm{~b}}=\overrightarrow{\mathrm{a}} \times(\hat{i}-2 \hat{k})\) and \(\overrightarrow{\mathrm{c}}=\overrightarrow{\mathrm{b}} \times \hat{k}\). Then the projection of \(\overrightarrow{\mathrm{c}}-2 \hat{j}\) on \(\vec{a}\) is :JEE Mains 2025 Medium
- A closed organ pipe has a fundamental frequency of \(1.5\, kHz\). The number of overtones that can be distinctly heard by a person with this organ pipe will be : (Assume that the highest frequency a person can hear is \(20,000\, Hz\))JEE Mains 2019 Easy
- A girl standing on road holds her umbrella at \(45^{\circ}\) with the vertical to keep the rain away. If she starts running without umbrella with a speed of \(15 \sqrt{2} \; kmh ^{-1}\), the rain drops hit her head vertically. The speed of rain drops with respect to the moving girl is ........... \(kmh ^{-1}\)JEE Mains 2022 Medium