Case : Read the passage and answer the question(s).
A charged particle whose mass is 19.9 ×10-27 kg and charge is 1.6×10-19 C moves with a speed of 3×105 m/s at right angle to a magnetic field of 0.75 T.
What is the radius of the circle in which charged particle moves?
Answer & explanation
Correct answer: option 1
r = \(\frac{mv}{qB}\)
m = 19.9 x 10-27 Kg ; v = 3 x 105 m s-2 ; q = 1.6 x 10-19 C ; B = 0.75 T
r = 49.7×10-3 m