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an insulating pipe of cross section area A contains an electrolyte which has two types of ions their charges being -e and +2e A potential difference applied between the ends of the pipe result in the drifting of the two types of ions having drift speed =V(-ve ion ) and V/4 (+ ion) both ions have same number per unit volume =n the current flowing through the pipe is? |
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Answer» Answer: Explanation: As the number of ions flowing through the PIPE is "n". The current(i) flowing through a pipe is DIRECTLY PROPORTIONAL to the number of ions(n) , number of electrons(e) flowing through the same, the drift velocity(Vd) of the electrons and the area of cross-section of the pipe(A).
Thus, i=neAVd, Here, i(1)=neAVd and i(2)=n2eAVd/4. Hence the net current through the pipe is inet = I1 + i2, inet = neAVd + neAVd/2. inet = 3/2neAVd. |
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