A capacitor with C = 5 uf is charged with a potential difference of 500v. Now at t = 0 you disconnect the battery and connect a resistor with r = 200k. At what time, t', the current has a value which is half the initial value. Please do not just copy;
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- A capacitor bank is designed to discharge 5.00 J of energy through a 10.0-kΩresistor array in under 2.00 ms. To what potential difference must the bank be charged, and what must the capacitance of the bank be?If 4.1 \times 1021 electrons pass through a 30 resistor in 7 min, what is the potential difference across the resistor? The fundamental charge is 1.602 \times 10-19 C. Answer in units of V.Find the potential difference Va - V w bnuce B.onoubo1g iewteawe bid bas bnoo9 mEAC is ni onucar 10 2 b ehre wwb 10 2 10 V 10 2 15 V- mnit 10 2
- In a parallel-plate diode, the anode is at 100 V with respect to the cathode which is 10 mm away from it. An electron is emitted from cathode with an initial velocity towards cathode of 1x10 m/s. The arrival velocity of the electron at anode is ..A parallel plate capacitor has a charge on one plate of q = 4.5E-07 C. Each square plate is d1 = 2.6 cm wide and the plates of the capacitor are separated by d2 = 0.25 mm. The gap is filled with air, εo = 8.85 × 10-12 C2/Nm2. What is the voltage between the plates, ΔV, in V? What plate width would double this voltage, in centimeters?Assume that V is a function of y and at y =2, V =5 volt and at y 4, V = 10 volt. a) Find V, E, JEl and draw these with respect to y-axis. b) Now if p 30uc and e, = 3. Find V, E, E and draw these with respect to y-axis.
- a load of 300kW,with power factor 0.65 lagging,has the power factor improved to 0.90lagging by parallel capacitors.How many kvar must these capacitors furnish,and what is the resulting percent reduction in apparent power?A switc is closed to connect an uncharged capacitor of capacitance C = 0.25 µF to a battery of pote. tial difforence AV = 12 V. The negative capacitor plate has thickness L = 0.50 cm and face area A = 2.0 × 10¬ª m², and it consists of copper (Cu), in which the density of conduction electrons is n = 8.49 × 10²8 electrons/m³. From what depth d within the plate must electrons move to the plate face as the capacitor becomes charged?A 12.0 µF capacitor is charged to a potential of 50.0 V and then discharged through a 175 Qresistor. How long does it take the capacitor to lose half of its charge? Select one: t%3D1.46 ms t = 5.00 ms t%3D0.87ms t%34.36ms None of these is correct Next pag
- Two parallel plates with an area of 3.0 cm2 are separated by a 2.5 mm thick dielectric with a constant of 4.70. If the potential difference between the plates is 120 V and the conduction current ic is 6.00 mA a) what is the charge (q) on each plate?A parallel plate capacitor of 1.45 10 Farads Connected to a power supply that keeps a 36 V plates a constant potenhal difference of behween the → How Much chage is on each plate? Now, a a of matenial (dielectnie constant 2.75) is placed behreen the piece plales, complekely filling the space in behween them. increase or decrease during he inserhon? How > How Much did he energy much was stored the capacitor before and after? inIn an integrated circuit, a capacitor is formed by growing silicon dioxide layer of thickness 1 [um] with E,-4 over the conducting silicon substrate and covering it with a metal electrode with area S. Determine the size of the capacitor if a capacitance of 2 [nF] is needed. -Use numbers when answering, rouding to the hundredths in the format 0.00 -Input your answers in units of [cm²] X 5.65