There is given an ideal capacitor with two plates at a distance of 3 mm. The capacitor is connected to a voltage source with 12 V until it is loaded completely Then the capacitor is disconnected from the voltage source. After this the two plates of the capacitor are driven apart until their distance is 5 mm. Now a positive test charge of 1 nC is brought from the positively charged plate to the negatively charges plate. How large is the kinetic energy of the test charge? The test charge of 1 nC can be regarded to be so small that it does not influence the electric field between the two plates of the capacitor.
a. 3.15 * 10 ^ 11 eV
b. 5, 31 - 10 ^ 11 * eV
c. 1.67 * 10 ^ 12 * eV
d. 3.26 * 10 ^ 10 * eV
e. 7.83 * 10 ^ 11 * eV
f, 1.25 * 10 ^ 11 * eV
g. 2,81-100 eV
h. 6, 73 * 10 ^ 10 * e
i. None of the above
