Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Current Electricity question

2023 · 31 Jan · Shift 1 · Q53
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Physics
  4. /Current Electricity
  5. /2023 · 31 Jan · Shift 1 · Q53

Current Electricity question

2023 · 31 Jan · Shift 1 · Q53

JEE MainPhysicsCurrent ElectricityMCQ+4 / −1
The drift velocity of electrons for a conductor connected in an electrical circuit is Vd\mathrm{V}_{\mathrm{d}}Vd​. The conductor in now replaced by another conductor with same material and same length but double the area of cross section. The applied voltage remains same. The new drift velocity of electrons will be
  1. A
    Vd4\frac{V_{d}}{4}4Vd​​
  2. B
    Vd\mathrm{V}_{\mathrm{d}}Vd​
  3. C
    2 Vd2 \mathrm{~V}_{\mathrm{d}}2 Vd​
  4. D
    Vd2\frac{V_{d}}{2}2Vd​​
PreviousNext

More from Current Electricity

  • Two identical cells, when connected either in parallel or in series gives same current in an external resistance 5 Ω. The internal resistance of each cell will be ​Ω.2023 · Numerical
  • The number of turns of the coil of a moving coil galvanometer is increased in order to increase current sensitivity by 50%. The percentage change in voltage sensitivity of the galvanometer will be :2023 · MCQ
  • The H amount of thermal energy is developed by a resistor in 10 s when a current of 4 A is passed through it. If the current is increased to 16 A, the thermal energy developed by the resistor…2023 · MCQ
  • Two identical cells each of emf 1.5 V are connected in parallel across a parallel combination of two resistors each of resistance 20 Ω. A voltmeter connected in the circuit measures 1.2 V. The internal resistance of each cell is :2022 · MCQ
  • What will be the most suitable combination of three resistors A = 2 Ω, B = 4 Ω, C = 6 Ω so that (322​) Ω is equivalent resistance of combination?2022 · MCQ
  • Which of the following physical quantities have the same dimensions?2022 · MCQ
  • In the given figure, the value of Vo will be ​ V. Includes diagram2022 · Numerical
  • Eight copper wire of length l and diameter d are joined in parallel to form a single composite conductor of resistance R. If a single copper wire of length 2l have the same resistance (R) then its diameter will be ​…2022 · Numerical