A velocity selector is built with a magnetic field of magnitude 1.6 T and an ele

Question

A velocity selector is built with a magnetic field of magnitude 1.6 T and an electric field of strength 2.9 × 104 N/C. The direction of the two fields are perpendicular to each other. At what speed will electrons pass through the selector without deflection? Let the charge of an electron q = 1.6 × 10-19 C.

5.2 × 104 m/s

1.8 × 104 m/s

1.0 × 103 m/s

8.8 × 104 m/s

A velocity selector is built with a magnetic field of magnitude 1.6 T and an electric field of strength 2.9 × 104 N/C. The direction of the two fields are perpendicular to each other. At what speed will electrons pass through the selector without deflection? Let the charge of an electron q = 1.6 × 10-19 C.

5.2 × 104 m/s

1.8 × 104 m/s

1.0 × 103 m/s

8.8 × 104 m/s

Explanation / Answer

A velocity selector is built with a magnetic field of magnitude 1.6 T and an ele

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