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Consider the following statements with reference to electric fuse:
- The principle behind the operation of the fuse is the heating effect of the electrical current.
- It is connected in parallel with the electric component.
Which of the statements given above is/are correct?
- a)1 only
- b)2 only
- c)Both 1 and 2
- d)Neither 1 nor 2
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
Consider the following statements with reference to electric fuse: The...
Explanation:
Heating effect of the electrical current:
- The first statement is correct. The principle behind the operation of an electric fuse is indeed the heating effect of the electrical current.
- When an excessive current flows through the fuse, it heats up due to the resistance of the fuse element.
- This heating effect causes the fuse element to melt and break the circuit, thereby protecting the electrical system from damage.
Connection in parallel:
- The second statement is incorrect. An electric fuse is connected in series with the electric component, not in parallel.
- When the current passing through the fuse exceeds the rated value, the fuse melts and opens the circuit, preventing damage to the connected electrical components.
- Connecting the fuse in series ensures that the current flows through the fuse before reaching the component, allowing the fuse to protect the component by breaking the circuit when necessary.
Therefore, the correct answer is option 'A' - 1 only, as only the first statement is correct.
Heating effect of the electrical current:
- The first statement is correct. The principle behind the operation of an electric fuse is indeed the heating effect of the electrical current.
- When an excessive current flows through the fuse, it heats up due to the resistance of the fuse element.
- This heating effect causes the fuse element to melt and break the circuit, thereby protecting the electrical system from damage.
Connection in parallel:
- The second statement is incorrect. An electric fuse is connected in series with the electric component, not in parallel.
- When the current passing through the fuse exceeds the rated value, the fuse melts and opens the circuit, preventing damage to the connected electrical components.
- Connecting the fuse in series ensures that the current flows through the fuse before reaching the component, allowing the fuse to protect the component by breaking the circuit when necessary.
Therefore, the correct answer is option 'A' - 1 only, as only the first statement is correct.
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Community Answer
Consider the following statements with reference to electric fuse: The...
Electric Fuse is a current interrupting device that protects the electrical circuit. The principle behind the operation of the fuse is the heating effect of the electrical current. If the current passes through a conductor with a certain resistance, the loss due to the conductor's resistance is dissipated in the form of heat. Under normal operating conditions, the heat produced in the fuse element is easily dissipated into the environment due to the flow of current through it. As a result, the fuse part remains at a temperature below its melting point. Hence statement 1 is correct.
Whenever some faults, such as short circuits, occur, the current flow through the fuse element exceeds the prescribed limits. This creates an excess of heat that melts the fuse part and breaks the circuit. So if the electrical current passing through the fuse goes beyond what the device can handle, the fuse link is melted and the circuit is opened to prevent damage to the electrical component. Fuses are always connected in series with the component to be protected from overcurrent, so that when the fuse blows (opens) it will open the entire circuit and stop current through the component. Hence statement 2 is not correct.
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Consider the following statements with reference to electric fuse: The principle behind the operation of the fuse is the heating effect of the electrical current. It is connected in parallel with the electric component.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'A'. Can you explain this answer?
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