Solution-Why a needle is magnetized

Why a needle is magnetized

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-Explain, using the domain theory, why a needle is magnetized when it is rubbed in one direction with a strong magnet.

-An electron accelerates from rest through an electric field and into a magnetic field as shown in the diagram below. The plates have a potential difference of 25 V, and the magnetic field has a magnitude of 0.50 T. (Remember: me = 9.1 × 10-31 kg and e = 1.6 × 10-19 C.)

(a) Calculate the initial speed of the electron upon entering the magnetic field.

(b) Calculate the magnitude and direction of the magnetic force on the electron.

-Draw a straight current-carrying conductor showing its magnetic field and the direction of current flow.

Reference no: EM132776443

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Why a needle is magnetized : -Explain, using the domain theory, why a needle is magnetized when it is rubbed in one direction with a strong magnet.

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Why a needle is magnetized

Reference no: EM132776443

Reference no: EM132776443

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