Electrons drift with speed v_d in a conductor with potential difference V across its…
Physics · Class 12 · CBSE — Current Electricity
Electrons drift with speed \(v_d\) in a conductor with potential difference V across its ends. If V is reduced to \(\left(\frac{\mathrm{V}}{2}\right)\) , their drift speed will become:
- \(\frac{\mathrm{v}_{\mathrm{d}}}{2}\)
- \(\mathrm{v}_{\mathrm{d}}\)
- \(2 \mathrm{v}_{\mathrm{d}}\)
- \(4 v_d\)
Answer
(A) v _ d 2
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- Which one of the following is the correct representation of variation of conductivity of a conductor with…
- Cu and Al wire each of length l = 20 cm and area of cross-section A = 50 cm 2 . Their resistivity _ Cu = 1.69…
- If N is Avogadro number, M is atomic weight and , the density, the number of free electrons per unit volume…
- There are N cells in the circuit of figure. The emf and internal resistance of each cell are and r…
- In a dc circuit the direction of current inside the battery and outside the battery respectively are
- Assertion (A): The internal resistance of a cell is constant. Reason (R): Ionic concentration of the…
- Two unequal resistors are connected in series across a battery. Then the
- Two conductors A and B of the same material have their lengths in the ratio 1: 2 and radii in the ratio 2: 3…
More Current Electricity questions · Browse all practice questions