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Physics lab 2. Multiple Choice Questions: This exam consists of 14 multiple choi

ID: 1558360 • Letter: P

Question

Physics lab 2. Multiple Choice Questions: This exam consists of 14 multiple choice questions. The main aim of the exam is to evaluate the students in the following 6 experiments given in General Physics Lab (2). Choose the correct answer. (1) For the circuit shown, if a current of 0.3 Ampere flows through the circuit for 12 minutes, and the deposited mass on the cathode is 0.07 grams, then the Electrochemical Equivalent of Copper (in g/C) will be: a. 3.67 times 10^-4 b. 3.33 times 10^-4 c. 3.24 times 10^-4

Explanation / Answer

Electrochemical equivalent of copper can be calculated using formula

m= zit

z= m/it

= .07/.3*12*60

=3.24*10^-4

option C