Question

In a certain magnetic circuit having a length of 500 mm and a cross sectional area of 300 mm2, an MMF of 200 AT produces a flux of 400 μWb. (a) Calculate the reluctance of the magnetic circuit in AT/Wb (b) Calculate the relative permeability of the core

Answer 1

Answer:

A black hole is a region of spacetime where gravity is so strong that nothing—no particles or even electromagnetic radiation such as light—can escape from it. The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole.

Explanation:

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Answer 2

Explanation:

Sociology is a social science that focuses on society, human social behaviour, patterns of social relationships, social interaction, and aspects of culture associated with everyday life.[1][2][3] It uses various methods of empirical investigation and critical analysis[4]:3–5 to develop a body of knowledge about social order and social change.[4]:32–40 Sociology can also be defined as the general science of society