Hi!! i really need help on my physics lab questions which is due in a couple hours...i'm so screwed..maybe someone can please help me...please...anyways..here are the questions:
1) For some capacitors, a certain polarity must be observed when they are connected as part of a circuit. What type of capacitors are these, and why are they polarized??
2) On the outside of many capacitors, a certain voltage is indicated in addition to the capacitance value. What does this voltage mean?
3) Often, capacitors that are part of an integrated circuit are of sub-millimetric dimensions. How is it possible that capacitors of such a minute size can have any useful value if, by necessity, the area of their "plates" must be exceedingly small??
If any of u can please answer these questions...man..that'll be great...
1) For some capacitors, a certain polarity must be observed when they are connected as part of a circuit. What type of capacitors are these, and why are they polarized??
2) On the outside of many capacitors, a certain voltage is indicated in addition to the capacitance value. What does this voltage mean?
3) Often, capacitors that are part of an integrated circuit are of sub-millimetric dimensions. How is it possible that capacitors of such a minute size can have any useful value if, by necessity, the area of their "plates" must be exceedingly small??
If any of u can please answer these questions...man..that'll be great...