10,000 alpha particles per minute, are passing through a straight tube of radiius r. The resulting electric current is approximately:
Correct answer: A. 0.5 x 10^16 amp
- A. 0.5 x 10^16 amp
- B. 0.5 x 10^12 amp
- C. 2 x 10^12 amp
- D. 2 x 10^-12 amp
Explanation
Charge on one alpha particle is, q = 3.2 × 10¯¹⁹C.Therefore, the total charge passing through the tube in 1 minute is,q = 10000 × 3.2 × 10-19C = 3.2 × 10-15C.Current=charge flow per second =(3.2 × 10-¹⁵C)/60 = 5.33 x 10-17 AWhich is approximately, 0.5 × 10-16 A.Hence, the resulting electric current is approximately 0.5 × 10−16 A.Hence, this option iscorrect according to the formula.
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