Analog television sets contain a cathode ray tube in these, Ask an Expert

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Analog television sets contain a cathode ray tube. In these tubes electrons are accelerated from rest through a potential difference of V = 720 V before striking the screen.

Part (a) Input an expression for the work done by the electric force accelerating a single electron, W, in terms of given quantities and the fundamental charge e.

Part (b) What is the value of this work, in joules?

Part (c) How much kinetic energy, in joules, does the electron have when it strikes the screen? Typically the electron starts with some very small velocity, but in this calculation you may assume it starts from rest.

Part (d) How fast is the electron traveling when it strikes the screen in m/s? Numeric : A numeric value is expected and not an expression.

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