Q. Materials having good retentivity are?

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Q. Magnetic field exists along which of the following?

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Q. Magnetomotive force is equal to__________________

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Q. Unit of MMF is ______________

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Q. When a bar magnet is broken into two pieces, which of the following are true?

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Q. When an electric current flows into the page, what is the direction of the magnetic field?

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Q. When an electric current flows out of the page, what is the direction of the magnetic field?

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Q. The relation between the direction of current and the direction of magnetic field is?

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Q. Permeability of free space is also known as _________

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Q. A substance whose permeability is less than the permeability of free space is?

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Q. Which, among the following, have negative susceptibility?

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Q. Which, among the following, have positive susceptibility?

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Q. A substance whose permeability is more than the permeability of free space is?

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Q. The unit for permeability of free space is?

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Q. Which among the following, is a correct expression for µ₀.

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Q. Calculate the magnetic flux density if the magnetic field strength is 2A/m.

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Q. Calculate the magnetic field strength if the magnetic flux density is 4*piT.

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Q. Calculate the magnetic flux density if the magnetic field strength is 3A/m.

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Q. What is the unit for relative permeability?

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Q. Which of the following expressions is correct with respect to relative permeability?

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