apacitor C = 5 pF, resistor R = 140 Q and a voltmeter are connected to a battery of Emf = 15 V as sho the figure below. If the voltmeter is disconnected, what is the potential difference across the capaci %3D a l'int V C b
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- What is the electrical potential difference between point A and B in the electric circuit below? V = 24 V, R1 = 20 Ω, R2 = 32 Ω, R3 = 44 Ω.Problem 10: While preparing a laboratory experiment on capacitors, you connect an E-4.5 V DC power supply to fully charge an old capacitor that is marked C- 330 HF Your lab assistant hooks up the circuit as shown below. When the switch S is at point a, the capacitor is connected to the power supply. When the switch S is at point b, the capacitor is disconnected from the power supply and connected to a voltmeter, V. The voltmeter has an internal resistance R-10.0 MS2 al Otheexpertta.com Part (a) The capacitor is initially uncharged, when the switch is moved to position a, hooking the capacitor C to the power supply. What will happen to the charge on the capacitor? It will quickly (but not instantaneously) increase to a maximum value Correct! Part (b) Calculate the charge on the capacitor (in Coulombs) when it is fully charged by the power supply Part (c) After the capacitor is fully charged, you switch the switch to position b at time t-0 seconds. The voltmeter initially reads 4.5 V.…2. In Figure 2 the ideal batteries have emfs E = 150 V and E, = 50 V and the resistances are %3D R1 = 3.0 N and R2 = 2.0 N. If the potential at P is 100 V, what is it at Q? R P Figure 2
- 13The capacitor shown below has an initial voltage of 0.15 V before the switch is closed. The resistance is 8.5 x 106 ohms and the capacitance is 2.0 microfarads. How long after the switch is closed in seconds does it take for the voltage across the resistor to drop to 0.083 V? R CH B A DThe Circuit in the figure below has been connected for a long time Let, Ri= 7.6052 and R₂ = 3.80m2 R₁ Joon W To ov R2 2.005 a) ka that is the potential difference across the capacitor? (answer in V) b) It the battery is disconnected from the Circuit, over what time interval des the capacitor discharge to one-fourth its initial voltage (answer in HS) dor 8 M 100MF M