AP EAMCET202522 May 2025Morning ShiftPhysicsCurrent ElectricityActual
In a metal, the charge carrier density is 9.1 10²⁸ ~m ⁻³ and its electrical conductivity is 6.4 10^7 ~S ~m ⁻¹ . When an electric field of 10 ~N C ⁻¹ is applied to the metal, then the average time between two successive collisions of electrons in the metal is ( . Mass of electron =9.1 10⁻³¹ ~kg ; charge of electron .=1.6 10⁻¹⁹ C )
Options
- A4.6 10⁻¹⁴ ~s
- B2.5 10⁻¹³ ~s
- C4.6 10⁻¹³ ~s
- D2.5 10⁻¹⁴ ~s
Correct answer
D. 2.5 10⁻¹⁴ ~s
Step-by-step solution
NO SOLUTION