12 μF is 20 µF= V2: 40 µF Determine the energy in each capacitor at t= 0.5 s. The energy in each capacitor is as follows: W12 µF = W20 µF= W40 µF=
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Let is = 50e−2t mA, v1(0) = 450 V, and v2(0) = 20 V.
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- E = +10.0 V E, = -3.0 V E,=0 V E =1.5 V (a) (b) (C) (d) E, = +7.0 V E = -4.5 V E =-1.5 V E, = -1.5 V 1. Which of the following diagrams could be applied to a fully charged 1.5 V battery? (More than one selection may be correct.)Two conductor plates A and B have a voltage difference across them of 300 V. Calculate the electric field between the plates, if they are separated by a distance of 11 mm. A electron is released from plate A and accelerates to the positive plate B. Assuming the electron does not collide with anything, calculate the electron’s velocity and kinetic energy by the time it arrives at plate B. Show that the loss in potential energy is matched by the gain in kinetic energy.The potential difference across a resistor is 4.4 * 10 ^ 2 V If the resistance of the resistor is 1.8k how much current flows through the resistor?
- In the figure ₁ = 3.89 V, 2 = 1.27 V, R₁ = 4.53 0, R₂ = 1.590, R3 = 3.00 , and both batteries are ideal. What is the rate at which energy is dissipated in (a) R₁, (b) R₂, and (c) R3? What is the power of (d) battery 1 and (e) battery 2? ww R₂ R₁ -18₁ R₂ Ef¬ (a) Number i Units (b) Number i Units (c) Number i Units (d) Number i Units (e) Number i Units dh >Two capacitors and a voltage source are connected in series, as shown. Let C1=4.05pF, let C2=9.75pF, and let V0=250V. 1) What is the voltage, in volts, across capacitor C1? V2 = ?In the figure &₁ = 2.97 V, 82=0.938 V, R₁ = 4.44 Q, R₂ = 2.110, R3 = 3.71 Q, and both batteries are ideal. What is the rate at which energy is dissipated in (a) R₁, (b) R2, and (c) R3? What is the power of (d) battery 1 and (e) battery 2? www R₁ =48₁ www ww R R$ (a) Number (b) Number E₂1 (c) Number i (d) Number i (e) Number i Textbook and Media Units Units Units Units Units کے
- In the circuit shown in the diagram below, two thick wires connect a 1.5 volt battery to a Nichrome (NiCr) wire. Each thick connecting wire is 17 cm long, and has a radius of 9 mm. The thick wires are made of copper, which has 8.36e+28 mobile electrons per cubic meter, and an electron mobility of 0.00434 (m/s)/(V/m). The Nichrome wire is 8 cm long, and has a radius of 4 mm. Nichrome has 9e+28 mobile electrons per cubic meter, and an electron mobility of 7e-05 (m/s)/(V/m). What is the magnitude of the electric field in the thick copper wire? V/m What is the magnitude of the electric field in the thin Nichrome wire? V/m Copper Copper NichromeA constant current transfers 10*10^14 electrons onto one plate of a capacitor in 3 minutes [min]. (a) What is the current, in units of amperes [A]? Express the answer using an appropriate SI prefix such that there are only 1, 2, or 3 digits shown to the left of the decimal. (b) If the capacitor has a capacitance of microfarads [F], what is the voltage in units of volts [V] across the capacitor?A region has a uniform electric field of 50 V/m to down. Point B is 3 meter to the left, and 4 meters above, point A. The voltage at point A is 600 V. What is the voltage at point B? O 450 V O 750 V O 350 V O 400 V O 800 V O 850 V
- The voltage across a membrane forming a cell wall is 78.7 mV and the membrane is 8.52 nm thick. What is the electric field strength? (The value is surprisingly large, but correct.) You may assume a uniform E-field. (V/m)A certain capacitor, in series with a resistor, is being charged. At the end of 10 ms its charge is half the final value. The time constant for the process is about: 5.0 ms 6.9 ms 10 ms 14 ms 20 msIn the figure the ideal batteries have emfs ε1 = 150 V and ε2 = 50 V and the resistances are R1 = 3.0 Ω and R2 = 2.0 Ω. If the potential at P is defined to be 95 V, what is the potential at Q?