capacitance

Capacitance is the ability of an electron or hole to “feel” other electronsA fundamental particle found outside atoms. It carries a negative charge. It can move easily in a conducting material, which gives rise to electrical current. or holesIn a material with specific places where electrons should be (like silicon), if an electron moves out of its designated spot, what’s left is called a hole. A hole effectively has a positive charge, and, as electrons move from hole to hole, it looks like the hole moves (even though, strictly speaking, it doesn’t – it just gets filled or emptied by a moving electron). on the other side of a small gap. The gap prevents actual currentThe amount of electrical flow. Measured in amperes or amps (A). from flowing, but, if small enough, electrons and holes can pile up on either side of the gap. Specific devices that make use of this are called capacitors.