Which of the following is NOT one of the purposes of a fuse or circuit breaker? To prevent electrocution. To prevent metal cases from becoming electrified. To protect appliances/devices against power surges. To allow you to reduce the power going into an appliance/device.

The correct answer is: To allow you to reduce the power going into an appliance/device.<br /><br />Explanation: Fuses and circuit breakers are safety devices used to protect electrical circuits from damage caused by overcurrent or short circuits. Their primary purposes include preventing electrocution, preventing metal cases from becoming electrified, and protecting appliances/devices against power surges. However, they do not allow you to reduce the power going into an appliance/device.