Question

In: Physics

A capacitor of unknown capacitance C is charged to 130 V and connected across an initially...

A capacitor of unknown capacitance C is charged to 130 V and connected across an initially uncharged 75 uF capacitor. if the final potential difference across the 75 uF capacitor is 47 V what is C? After you find the value of C, you charge this capacitor C to a potential difference V=140 V between its plates. The charging battery is now disconnected and a slab material ( k=7.20 is slipped between the plates. what is the potential energy of the device, both before and after the slab is introduced?

Solutions

Expert Solution


Related Solutions

A 5.5 F capacitor is charged to 35 V and is then connected across a 12-mH...
A 5.5 F capacitor is charged to 35 V and is then connected across a 12-mH inductor. (a) How much energy is stored in the system? J (b) What is the frequency of oscillation of the circuit? Hz [3.33 points] (c) What is the maximum current in the circuit? A
A resistor with 830? is connected to the plates of a charged capacitor with capacitance 4.60?F...
A resistor with 830? is connected to the plates of a charged capacitor with capacitance 4.60?F . Just before the connection is made, the charge on the capacitor is 7.00mC Part A What is the energy initially stored in the capacitor? Part B What is the electrical power dissipated in the resistor just after the connection is made? Part C What is the electrical power dissipated in the resistor at the instant when the energy stored in the capacitor has...
A capacitor with capacitance 6.00 × 10−5 is charged by connecting it to a 12.0 V...
A capacitor with capacitance 6.00 × 10−5 is charged by connecting it to a 12.0 V battery. The capacitor is disconnected from the battery and connected across an inductor with L=1.50 H. What is the initial energy stored in the capacitor? What are the angular frequency of the electrical oscillations and the period of the oscillations? What is the charge on the capacitor 0.0230 s after the capacitor is connected to the inductor? Interpret the sign of your answer. What...
A resistor of resistance R and a capacitor of capacitance C are connected in series to...
A resistor of resistance R and a capacitor of capacitance C are connected in series to an EMF of voltage E. A switch is set to the open position and the capacitor is initially uncharged. The switch is then closed. Show that when the capacitor charges that half of the energy drawn from the EMF is dissipated in the resistor and that half of the energy is stored in the capacitor.
The potential difference across a charged capacitor is 22 V. The capacitor discharges through a fixed...
The potential difference across a charged capacitor is 22 V. The capacitor discharges through a fixed resistor. After a time equal to the time constant, the potential difference has reduced to V. The magnitude of V is:
A parallel plate air capacitor with a capacitance of C (0.02 F) is connected to a...
A parallel plate air capacitor with a capacitance of C (0.02 F) is connected to a 12V battery and charged. The capacitor is then disconnected from the battery and a dielectric with a dielectric constant of k (3.2) is inserted between the plates. How much energy will be stored in the capacitor after inserting the dielectric (6 points)? please explain step by step
Problem 3: A capacitor of capacitance C = 2 μF has been charged so that the...
Problem 3: A capacitor of capacitance C = 2 μF has been charged so that the potential difference between its plates is V0 = 85 V. The capacitor is then connected to a resistor of resistance R = 5.5 kΩ. The switch S is closed, and the capacitor begins to discharge. C = 2 μF V0 = 85 V R = 5.5 kΩ Calculate the time constant τ of the circuit in seconds. Calculate the charge Q0 on the capacitor...
An empty parallel plate capacitor is connected between the terminals of a 10.7-V battery and charged...
An empty parallel plate capacitor is connected between the terminals of a 10.7-V battery and charged up. The capacitor is then disconnected from the battery, and the spacing between the capacitor plates is doubled. As a result of this change, what is the new voltage between the plates of the capacitor?
A resistor of unknown resistance and a 22 Ω resistor are connected across a 20 V...
A resistor of unknown resistance and a 22 Ω resistor are connected across a 20 V emf in such a way that a 2.0 A current is observed in the emf. What is the value of the unknown resistance?
A 500 nF capacitor is initially connected to a 100 V DC voltage source. At some...
A 500 nF capacitor is initially connected to a 100 V DC voltage source. At some long time later, the switch is flipped and the capacitor is now connected to a 120 mH inductor. a) What is the frequency of oscillation in the circuit after the switch is flipped. b) After the switch is filpped, what would the peak current value be? c) What is the maximum possible value for the energy stored in the inductor? d) The energy in...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT