Multiple choice

What is the current in the wire every 2.0 seconds, if 10 C charge flows through it?

  1. 0.2 A

  2. 5 A

  3. 20 A

  4. 1200 A

  5. 12 A

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Current is the ratio of charge to time. The quantity of charge passing through a cross section in 2 seconds is 10 C. The ratio of charge to time isI = Q / t = ( 10 C) / ( 2 s) = 5 C/s = 5 Ampere