A2400 pf air-gap capacitor is connected to a 6.4 v battery. if a piece of mica is placed between the plates, how much charge will flow from the battery?

The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space. assume that the membrane acts like a parallel plate capacitor in which the effective charge density on the inner and outer walls has a magnitude of 7.0 × 10-6 c/m2. (a) what is the magnitude of the electric field within the cell membrane? (b) find the magnitude of the electric force that would be exerted on a potassium ion (k+; charge = +e) placed inside the membrane.

Abar magnet cut in half will form a total ofpoles.a)fourb)eightc)two

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