Two capacitors to 3 uF charged to a 100 V, and the other to 200 V. Determine the voltage between the plates, if the capacitors connected in parallel

Два конденсатора емкостью по 3 мкФ заряжены один до 100 В, а другой до 200 В. Определить напряжение между обкладками, если конденсаторы соединены параллельно.

C = Q/V

Q1 = 3*10^-6 * 100
Q2 = 3*10^-6 * 200
total Q = 900 * 10^-6 Coulombs
total C = 6*10^-6 farads

V = Q/C = 900/6 = 150 Volts

(We probably should have guessed that :)

To determine the voltage between the plates when the capacitors are connected in parallel, we can use the principle of charge conservation.

When capacitors are connected in parallel, the voltage across them is the same. So, the voltage between the plates will be the same as the voltage across either capacitor.

Given that one capacitor is charged to 100 V and the other capacitor is charged to 200 V, the voltage between the plates will be the same as the highest voltage, which is 200 V.

Therefore, the voltage between the plates, when the capacitors are connected in parallel, is 200 V.