An Electron Is Shot from an Electron Gun with a Speed

question 28

Multiple Choice

An electron is shot from an electron gun with a speed parallel to and a distance of 2.0 cm above a long straight wire carrying a current of 10A. The magnitude of its acceleration at the instant it leaves the electron gun is 6.1 * 10¹¹ m/s .What is the speed of the electron.

• A)1.3 * 10⁴ m/s
• B)2.2 * 10⁴ m/s
• C)3.5 * 10⁴ m/s
• D)4.8 * 10⁴ m/s

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