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The line integral of the electric field intensity is
  • a)
    Mmf
  • b)
    Emf
  • c)
    Electric potential
  • d)
    Magnetic potential
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
The line integral of the electric field intensity isa)Mmfb)Emfc)Electr...
Answer: b
Explanation: From the Maxwell first law, the transformer emf is given by the line integral of the electric field intensity. Thus the emf is given by ∫ E.dl.
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The line integral of the electric field intensity isa)Mmfb)Emfc)Electr...
Line Integral of Electric Field Intensity

The line integral of the electric field intensity is an important concept in the field of electrical engineering. It refers to the calculation of the work done by an electric field in moving a charged particle along a given path. The formula for calculating the line integral is as follows:

∫E·ds = W

Where E is the electric field intensity, ds is the differential element of the path, and W is the work done by the electric field in moving the charged particle along the path.

Explanation of Options

(A) Mmf: Mmf stands for magnetomotive force. It is a term used in electromagnetics to describe the force that drives magnetic flux through a magnetic circuit. It is not related to the line integral of the electric field intensity.

(B) Emf: Emf stands for electromotive force. It is a term used to describe the voltage generated by a source such as a battery or a generator. However, in the context of this question, it refers to the line integral of the electric field intensity, which is the correct answer.

(C) Electric Potential: Electric potential is a scalar quantity that describes the amount of work that would be required to move a charged particle from one point to another in an electric field. It is not the same as the line integral of the electric field intensity.

(D) Magnetic Potential: Magnetic potential is a term used in electromagnetics to describe the energy stored in a magnetic field. It is not related to the line integral of the electric field intensity.

Conclusion

In conclusion, the line integral of the electric field intensity is calculated using the formula ∫E·ds = W. The correct answer to the question is option (B), which refers to the line integral of the electric field intensity. The other options (A), (C), and (D) are not related to the line integral of the electric field intensity.
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The line integral of the electric field intensity isa)Mmfb)Emfc)Electric potentiald)Magnetic potentialCorrect answer is option 'B'. Can you explain this answer?
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