Saved Bookmarks
| 1. |
A proton enters a magnetic field of flux density 1.5 Wb/m2 with a speed of 2 x 107 m/s at angle of 30°v with the field. The force on the proton will be ………(a) 0.24 x 10-12 N (b) 2.4 x 10-12 N (c) 24 x 10-12 N (d) 0.024 x 10-12 N |
|
Answer» (b) 2.4 x 10-12 N F = Bqv sin θ = 1.5 x 1.6 x 10-19 x 2 x 107 x sin 30°= 2.4 x 10-12 N |
|