Search
- https://phys.libretexts.org/Courses/Muhlenberg_College/Physics_122%3A_General_Physics_II_(Collett)/06%3A_Direct-Current_Circuits/6.07%3A_Household_Wiring_and_Electrical_SafetyElectricity presents two known hazards: thermal and shock. A thermal hazard is one in which an excessive electric current causes undesired thermal effects, such as starting a fire in the wall of a hou...Electricity presents two known hazards: thermal and shock. A thermal hazard is one in which an excessive electric current causes undesired thermal effects, such as starting a fire in the wall of a house. A shock hazard occurs when an electric current passes through a person. Shocks range in severity from painful, but otherwise harmless, to heart-stopping lethality. In this section, we consider these hazards and the various factors affecting them in a quantitative manner.
- https://phys.libretexts.org/Courses/Georgia_State_University/GSU-TM-Introductory_Physics_II_(1112)/06%3A_Resistive_Networks/6.04%3A_Household_Wiring_and_Electrical_SafetyAs current flows through a wire, the power dissipated in the supply wires is P=I2RW, where RW is the resistance of the wires and I is the current flowing through the wires. Figure \(\Pag...As current flows through a wire, the power dissipated in the supply wires is P=I2RW, where RW is the resistance of the wires and I is the current flowing through the wires. Figure \PageIndex2: An electric current can cause muscular contractions with varying effects. (a) The victim is “thrown” backward by involuntary muscle contractions that extend the legs and torso. (b) The victim can’t let go of the wire that is stimulating all the muscles in the hand.
- https://phys.libretexts.org/Courses/Georgia_State_University/GSU-TM-Physics_II_(2212)/05%3A_Resistive_Networks/5.04%3A_Household_Wiring_and_Electrical_SafetyAs current flows through a wire, the power dissipated in the supply wires is P=I2RW, where RW is the resistance of the wires and I is the current flowing through the wires. A dangerous c...As current flows through a wire, the power dissipated in the supply wires is P=I2RW, where RW is the resistance of the wires and I is the current flowing through the wires. A dangerous condition occurs when the body is in contact with a voltage source and “ground.” The term “ground” refers to a large sink or source of electrons, for example, the earth (thus, the name).
