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A capacitor consisting of two concentric spheres of radius R1 and R2 = 2.00-R1 has a capacitance of C = 6.00 picoFarads and is

 

A capacitor consisting of two concentric spheres of radius R1 and R2 = 2.00-R1 has a capacitance of C = 6.00 picoFarads and is charged to a potential difference of 64.0 Volts. Calculate the energy stored in the capacitor. 1.23x10-8 J You are correct. Your receipt no. is 157-3749 Previous Tries Calculate the charge on this capacitor, when the electrical energy stored is 12.3-10-8 Joules. 1.21x10-9 C You are correct. Your receipt no. is 157-2769 Previous Tries If the radius of the outer sphere is increased by a factor of 2.50 while keeping the charge on the plates constant, by what factor does the stored energy change? 3.211 Calculate the capacitance of a sphere in terms of R1 before and after R2 was increased. By considering the ratio of the two stored energies, the unknown radius, R1, drops out. Use the energy formula containing charge. Submit Answer Incorrect. Tries 3/5 Previous Tries

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