Question
Which of the AMoning scatements is tree when the lead of a test bight or common had of the volunter is conscient to chases ground? Select one: a. Agood fise shows a very bigh resistance b. Ablown fase has of the fuse c. Agood fise has battery robote on celly coe side of the first. the same intege on Ancheads
Solution
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SaylorElite · Tutor for 8 years
Answer
The correct answer is **c. A good fuse has battery voltage on one side of the fuse and the same voltage on the other side.**<br /><br />Here's why:<br /><br />* **A fuse's purpose:** A fuse is a safety device designed to protect a circuit from overcurrent. It contains a thin wire that melts and breaks the circuit if too much current flows through it.<br /><br />* **How a fuse works:** When a fuse is functioning correctly and the circuit is operating normally, the voltage should be the same on both sides of the fuse. This indicates that current is flowing unimpeded.<br /><br />* **A blown fuse:** When a fuse blows (fails), the circuit is broken. Therefore, there will be voltage on one side (the source side) and no voltage on the other (the load side) because the circuit is open. Option 'b' about burn marks is sometimes true, but not always a reliable indicator.<br /><br />* **Resistance of a good fuse:** A good fuse has very *low* resistance, not high resistance. It needs to allow current to flow easily through the circuit. High resistance would impede the normal operation of the circuit.<br />
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