A load could be an electronic resistor like this one, or an electrical appliance. © Eugene Brennan How to Work Out Power in a Circuit Knowing the Resistance and Voltage or Current Remember watts = volts x amps? An alternative way to work out power is from the resistance in ohms: So...
Pinball machines contain potentially lethal voltage. Dangerous voltage may remain for a period even after it is unplugged. Prior to opening a pinball machine, be certain to unplug it, then turn it on to insure that it was actually unplugged. It is recommended that the machine be allowed to s...
If you cannot identify the broken part or do not know how to handle high-voltage equipment safely, hire a professional repairman. 2 Locate the fuses. Your microwave may have two types of fuse. The line fuses are usually familiar ceramic tubes, about 1¼ inches (3 cm) long.[12] The ...