An ionization chamber with parallel conducting plates as anode an… - Vidyadip

MCQ

An ionization chamber with parallel conducting plates as anode and cathode has $5 \times 10^7$ electrons and the same number of singlycharged positive ions per $cm ^3$. The electrons are moving at $0.4\ m / s$. The current density from anode to cathode is $4 \ \mu A / m ^2$. The velocity of positive ions moving |towards cathode is

A
$0.4\ m/s$
B
$16\ m/s$
C
Zero
✓
$0.1\ m/s$

✓

Answer

Correct option: D.

$0.1\ m/s$

$0.1\ m/s$

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