118.8cm 2 surface of the copper cathode of a voltameter is to be coated with
PHYSICS
JAMB 2007
118.8cm2 surface of the copper cathode of a voltameter is to be coated with 10-6m thick copper of density 9 x 103kgm-3. How long will the process run with 10A constant current?
[3.3 x 10-7kgC-1]
- A) 5.4 min
- B) 10.8 min
- C) 15.0 min
- D) 20.0 min
Correct Answer: A) 5.4 min
Post an Explanation Or Report an Error
If you see any wrong question or answer, please leave a comment below and we'll take a look. If you doubt why the selected answer is correct or need additional more details? Please drop a comment or Contact us directly. Your email address will not be published. Required fields are marked *