In an X-ray tube, electrons emitted from a filament (cathode) carrying current I hit a target (anode) at a distance 𝑑 from the cathode. The target is kept at a potential V higher than the cathode resulting in emission of continuous and characteristic X-rays. If the filament current 𝐼 is decreased to I2, the potential difference 𝑉 is increased to 2V, and the separation distance 𝑑 is reduced to d2 , then