Solve this plzzz..
Q.3. In X-ray tube the potential difference between the anode and the cathode is 20 kV and current flowing is 2 mA. Find,
(a) The number of electrons striking the anode in 1 s,
(b) The speed of electrons while striking the anode,
(c) Minimum wavelength ( λ m i n ) emitted.
 

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