Q. A certain medical machine emits x-rays with a minimum wavelength of 0.025 nm. One day, the machine has an electrical problem and the voltage applied to the x-ray tube decreases to 80% of its normal value. Now what is the minimum x-ray wavelength produced by the machine?
Q. For a TeflonTM-filled parallel-plate capacitor having a plate area of 225 cm2 and insulation thickness of 0.0600 mm, determine the following:
(a) the capacitance
(b) the maximum voltage that can be applied to this capacitor