A 3500 pF (picofarads) air-gap capacitor isconnected to a 32 V battery. If a piece of mica fills the space between the plates, howmuch charge will flow from the battery? The K constant for mica is 7. I think it's just Q=CV, but it'snot right. Please need help this is due soon! A 3500 pF (picofarads) air-gap capacitor isconnected to a 32 V battery. If a piece of mica fills the space between the plates, howmuch charge will flow from the battery? The K constant for mica is 7. I think it's just Q=CV, but it'snot right. Please need help this is due soon!
Explanation / Answer
For a parallel plate capacitor thecapacitance Co = o A /d Given capacitance of parallel plate capacitor=3500 pF If a piece ofmica fills the space between the plates capacitance C = o A k/d = k Co = 3500 pF x 7.1 Q = C V = 3500 pF x 7.1 x 32 = 0.7 C