A capacitance meter is used to measure the level of material in a tank. The tank

Question

A capacitance meter is used to measure the level of material in a tank. The tank is a metal cylinder, with radius 1m and height 5m. The probe is a rod that is inserted down the center of the tank. The material has a dielectric constant (k) of 5. Calculate the capacitance when the material height is 4m.

Explanation / Answer

capacitance= (2*pi*Eo*k*L)/ln(b/a) here a---->b therefore capacitance is infinite,,,,,,,,,,,,or for a physical capacitor there should be separation of charges , and in this case there is a no inner and outer diameter so no separation of charges and capacitance is infinite

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