Question

Electrical Shock Electric shock occurs when the body becomes part of an electrical circuit. Shocks can happen in three ways. • A person may come in contact with both conductors in a circuit. • A person may provide a path between an ungrounded conductor and the ground. • A person may provide a path between the ground and a conducting material that is in contact with an ungrounded conductor. Current is the killing factor in electrical shock. Voltage is important only in that it determines how much current will flow through a given body resistance. The current necessary to operate a 10-watt light bulb is eight to ten times more current than the amount that would kill a person. A potential difference of 120 volts is enough to cause a current to flow, which is many times greater than that necessary to kill. The following values are given for human resistance to electrical current. Dry Skin-100,000 ohm to 600,00 ohm Wet Skin-1000 ohm a. Why is it dangerous to handle electrical equipment with wet skin? b. What is meant by the statement that the potential difference between two points is 1 volt? c. What would happen if you used a 3A fuse in an electrical heater that needs a current of 8A to function? d. A current of 2A passes through a circuit for 1 minute. If the potential difference between the terminals of the circuit is 3 V, what is the work done in transferring the charges?

Answer 1

Answer:

Your electrical switches might be outdated: A light switch doesn't have to be faulty or damaged to cause an electrical shock! ... A faulty appliance could have frayed wiring, damaged circuitry or perhaps broken cords and all these could result in electrical currents becoming unstable hence the cause of shocks