The radius of the disk is R, and the mass of the disk is M. Using the parallel axis theorem and theequation for the moment of inertia of a disk about its central axis developed in the previous example, Eq. (8), the moment of inertia of the disk about the specified axis is Fig.
Short Circuits. Short circuits are the second most common reason for breaker tripping and are a more serious concern. Short circuits occur when the black hot wires inside your electrical service panel come in contact with either other hot wires or neutral wires.
Low voltage at an outlet, or excessive voltage drop, can cause a number of fault conditions in the home wiring system. An appliance or piece of equipment can suffer erratic operation, non-operation or permanent interior damage to the circuit of the appliance with low voltage. Low voltage can cause an efficiency drop, leading to wasted energy. Low voltage can be the sign of high resistance in the circuit, branch wiring, or at the switch or outlet location. High amperage and resistance and defective or poor insulation can cause fires. Any home owner can repair low voltage at an outlet by using precaution and some basic tools and steps.