energy = U = 1/2 C V^2
if voltage is doubled energy = U1 = 1/2 * C * ( 2 V )^2
U1 = 4 * 1/2 C V^2 = 4 U = Energy increases four times
U1 = 4 U = energy becomes four times of initial energu
the voltage applied across a given parallel-plate capacitor is double. How is the energy stored in...
A parallel-plate capacitor has capacitance 9.50 uF. (a) How much energy is stored in the capacitor if it is connected to a 7.00-V battery? (b) If the battery is disconnected and the distance between the charged plates doubled, what is the energy stored? (c) The battery is subsequently reattached to the capacitor, but the plate separation remains as in part (b). How much energy is stored? Need Help? Read It 13. -120 points OSColPhys1 19.5.064 XP A large capacitance of...
QUESTION 3 A parallel plate capacitor with capacitance of 3 uF if the applied voltage difference between the two plates is 9 V. Find the stored energy in
A parallel-plate capacitor has capacitance 7.50 ?F. (a) How much energy is stored in the capacitor if it is connected to a 15.00-V battery? ?J (b) If the battery is disconnected and the distance between the charged plates doubled, what is the energy stored? ?J (c) The battery is subsequently reattached to the capacitor, but the plate separation remains as in part (b). How much energy is stored? ?J
A parallel-plate capacitor has capacitance 5.50 μF. (a) How much energy is stored in the capacitor if it is connected to a 18.00-V battery? ______μJ (b) If the battery is disconnected and the distance between the charged plates doubled, what is the energy stored? _______μJ (c) The battery is subsequently reattached to the capacitor, but the plate separation remains as in part (b). How much energy is stored? _______μJ
A parallel-plate capacitor has capacitance 7.50 uF. (a) How much energy is stored in the capacitor if it is connected to a 19.00-V battery? ա․ (b) If the battery is disconnected and the distance between the charged plates doubled, what is the energy stored? uJ (c) The battery is subsequently reattached to the capacitor, but the plate separation remains as in part (b). How much energy is stored? u]
Please fully explain
5) A 4 microF capacitor has a voltage of 50 volts applied across it. a) How much charge is stored on the capacitor? 2x104 с b) How much energy is stored on the capacitor? 5.0 mJ places is doubled (with the distance between the plates and the voltage remaining the same), which of the following quantities will change (relative to the original 4 microF capacitor with 50 volts applied): (1) capacitance, (2) energy stored, (3) charge stored?...
A parallel-plate vacuum capacitor is connected to a battery and charged until the stored electric energy is U. The
battery is removed, and then a dielectric material with dielectric
constant K is inserted
into the capacitor, filling the space between the plates. Finally,
the capacitor is fully discharged through a resistor (which is
connected across the capacitor terminals).A.)Find Ur, the
the energy dissipated in the resistor.Express your answer in terms
of U and other
given quantities.B.) Consider the same situation...
a parallel plate capacitor had metal plates, each of area
1.5
A parallel applied to it? plate capacitor has metal plates, each of area 1.50 m2, t charge (in pC) is stored in this capacitor if a voltage of 2.70 × 102 Vis
A vacuum filled parallel plate capacitor with capacitance 9.00 μF is initially connected to a battery of voltage 3.20 V , thus storing an original charge of 28.8 μC . dielectric constant is 4. what is the final voltage across the capacitor? the answer is NOT 3.20 V. what is the final energy stored in the capacitor? how much charged is stored on the capacitor after the dielectric is inserted? how much energy is stored on the capacitor one the...
A capacitor is connected in parallel with a resistor and a sinusoidal voltage is applied across them. If the voltage has a phase angle of 25 degrees, what is the phase angle of the resistor current and the phase angle of the capacitor current? Explain why and show calculations.