Task id9631
A pocket radiation dosimeter is an air capacitor charged to a certain potential difference. Under the influence of irradiation, the gas is ionized, and the ions, moving to the capacitor plates, lower the potential difference. When irradiated with 1 roentgen, n0 = 2 • 109 pairs of ions are formed in each cubic centimeter of air under normal conditions. How many x-rays will the dosimeter show if, with a capacitor capacitance of C = 3 • 10-12 F, the potential difference has decreased from U1 = 180 V to U2 = 160 V? Chamber capacity V = 1.8 cm3. Express the result obtained in SI units.
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