A capacitor consists of two large metal disks of radius 1.5meters placed paralle

Question

A capacitor consists of two large metal disks of radius 1.5meters placed parallel to each other a distance of 0.9 millimetersapart. The capacitor is charged up to have an increasingamount of charge +Q on one disk and -Q on the other. At aboutwhat value of Q does a spark appear between the disks? Please give answer inCoulombs.                          Answer______________________ C A capacitor consists of two large metal disks of radius 1.5meters placed parallel to each other a distance of 0.9 millimetersapart. The capacitor is charged up to have an increasingamount of charge +Q on one disk and -Q on the other. At aboutwhat value of Q does a spark appear between the disks? Please give answer inCoulombs.                          Answer______________________ C

Explanation / Answer

E=Q/S0 E>=3e6(V/m) so Q>=3e6*S*0=1,88e-4(C)

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