Manipal MET2018PhysicsMagnetic Effects of Current
A straight conductor carries a current of 5 A . An electron travelling with a speed of 5 10^6 ~ms ⁻¹ parallel to the wire at a distance of 0.1 m from the conductor, experiences a force of
Options
- A8 10⁻²⁰ ~N
- B3.2 10⁻¹⁹ ~N
- C8 10⁻¹⁸ ~N
- D1.6 10⁻¹⁹ ~N
Correct answer
C. 8 10⁻¹⁸ ~N
Step-by-step solution
aligned & F= Bev and B= ₀ i 2 r & F= ₀ i 2 r ev & = 4 10⁻⁷ 5 2 0.1 1.6 10⁻¹⁹ 5 10^6 & =8 10⁻¹⁸ ~N aligned