Air "breaks down" when the electric field strength reaches 3 x 10^6 n/c, causing a spark. a parallel-plate capacitor is made from two 5.1 cm x 5.1 cm plates. how many electrons must be transferred from one plate to the other to create a spark between the plates?

Explanation:

It is given that,

Electric field due to the spark,

Dimensions of the parallel-plate capacitor is 5.1 cm × 5.1 cm.

The area of the parallel plate,

The electric field due to the parallel plate capacitor is given by :

Let n is the number of electrons that must transferred from one plate to the other to create a spark between the plates. It can be calculated as :

So, the number of electrons must be transferred from one plate to the other is . Hence, this is the required solution.

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