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The current and potential coil of a wattmeter were accidentally interchanged while connecting.After energizing the circuit, it was observed that the wattmeter did not show the reading. This could be due to
- a)damage to potential coil
- b)damage to current coil
- c)damage to both potential and current coil
- d)loose contact
Correct answer is option 'A'. Can you explain this answer?
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The current and potential coil of a wattmeter were accidentally interc...
The correct answer is option 'A', which states that the lack of reading on the wattmeter could be due to damage to the potential coil. Let's discuss why this is the correct answer in detail.
A wattmeter is an electrical measuring instrument used to measure the power consumption or generation in a circuit. It consists of two coils - the current coil (also known as the current transformer) and the potential coil (also known as the voltage transformer). The current coil is connected in series with the load, while the potential coil is connected across the load.
When the current flows through the current coil, it produces a magnetic field proportional to the current. This magnetic field induces a current in the potential coil, which is proportional to the voltage across the load. The interaction between these two coils allows the wattmeter to measure the power consumption or generation in the circuit.
In this scenario, the current and potential coils of the wattmeter were accidentally interchanged while connecting. This means that the current coil is now connected across the load, and the potential coil is connected in series with the load. As a result, the wattmeter will not show any reading.
This is because the current coil is designed to measure the current flowing through the load, not the voltage. By connecting it across the load, it will not be able to accurately measure the voltage. Similarly, the potential coil is designed to measure the voltage across the load, not the current. By connecting it in series with the load, it will not be able to accurately measure the current.
Therefore, the lack of reading on the wattmeter can be attributed to the damage to the potential coil. The potential coil, now connected in series with the load, is unable to measure the current and provide the necessary information to calculate the power consumption or generation in the circuit.
In conclusion, when the current and potential coils of a wattmeter are accidentally interchanged while connecting, the lack of reading can be attributed to the damage to the potential coil.
A wattmeter is an electrical measuring instrument used to measure the power consumption or generation in a circuit. It consists of two coils - the current coil (also known as the current transformer) and the potential coil (also known as the voltage transformer). The current coil is connected in series with the load, while the potential coil is connected across the load.
When the current flows through the current coil, it produces a magnetic field proportional to the current. This magnetic field induces a current in the potential coil, which is proportional to the voltage across the load. The interaction between these two coils allows the wattmeter to measure the power consumption or generation in the circuit.
In this scenario, the current and potential coils of the wattmeter were accidentally interchanged while connecting. This means that the current coil is now connected across the load, and the potential coil is connected in series with the load. As a result, the wattmeter will not show any reading.
This is because the current coil is designed to measure the current flowing through the load, not the voltage. By connecting it across the load, it will not be able to accurately measure the voltage. Similarly, the potential coil is designed to measure the voltage across the load, not the current. By connecting it in series with the load, it will not be able to accurately measure the current.
Therefore, the lack of reading on the wattmeter can be attributed to the damage to the potential coil. The potential coil, now connected in series with the load, is unable to measure the current and provide the necessary information to calculate the power consumption or generation in the circuit.
In conclusion, when the current and potential coils of a wattmeter are accidentally interchanged while connecting, the lack of reading can be attributed to the damage to the potential coil.
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The current and potential coil of a wattmeter were accidentally interchanged while connecting.After energizing the circuit, it was observed that the wattmeter did not show the reading. This could be due toa)damage to potential coilb)damage to current coilc)damage to both potential and current coild)loose contactCorrect answer is option 'A'. Can you explain this answer?
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The current and potential coil of a wattmeter were accidentally interchanged while connecting.After energizing the circuit, it was observed that the wattmeter did not show the reading. This could be due toa)damage to potential coilb)damage to current coilc)damage to both potential and current coild)loose contactCorrect answer is option 'A'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about The current and potential coil of a wattmeter were accidentally interchanged while connecting.After energizing the circuit, it was observed that the wattmeter did not show the reading. This could be due toa)damage to potential coilb)damage to current coilc)damage to both potential and current coild)loose contactCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The current and potential coil of a wattmeter were accidentally interchanged while connecting.After energizing the circuit, it was observed that the wattmeter did not show the reading. This could be due toa)damage to potential coilb)damage to current coilc)damage to both potential and current coild)loose contactCorrect answer is option 'A'. Can you explain this answer?.
The current and potential coil of a wattmeter were accidentally interchanged while connecting.After energizing the circuit, it was observed that the wattmeter did not show the reading. This could be due toa)damage to potential coilb)damage to current coilc)damage to both potential and current coild)loose contactCorrect answer is option 'A'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about The current and potential coil of a wattmeter were accidentally interchanged while connecting.After energizing the circuit, it was observed that the wattmeter did not show the reading. This could be due toa)damage to potential coilb)damage to current coilc)damage to both potential and current coild)loose contactCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The current and potential coil of a wattmeter were accidentally interchanged while connecting.After energizing the circuit, it was observed that the wattmeter did not show the reading. This could be due toa)damage to potential coilb)damage to current coilc)damage to both potential and current coild)loose contactCorrect answer is option 'A'. Can you explain this answer?.
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