Capacitance is determined by two storage principles, double-layer capacitance and pseudocapacitance. Impedance decreases with increasing capacitance and increasing frequency. For higher switching frequencies, components with lower capacitance and inductance are needed. Electrical properties include conductivity, resistance, impedance and capacitance. In ferroelectric class 2 ceramic capacitors capacitance decreases over time. Video cables are 75 ohm impedance, low in capacitance. Class 1 capacitors exhibit very small tolerances of the rated capacitance. He was also one of the first to report negative capacitance and inductance. This can lead to loss of capacitance and subsequent motherboard malfunctions due to voltage instabilities. The lower the electrode capacitance the faster one can cycle. Without the load capacitance, the resonant frequency is higher. Generally the smaller the electrode's pores, the greater the capacitance and specific energy. Any small additional capacitance in parallel with the crystal pulls the frequency lower. Any object that can be electrically charged exhibits "self capacitance". Myelin reduces the capacitance of the axonal membrane.