(S%) Problem 11: A bank of batteries, total emf ɛ = 7.5 V, is in a circuit with resistor R= 120 k2, capacitor C =470 nF, and two-pole switch S as shown. The switch is initially set to point a so that the batteries, resistor, and capacitor are in series. The switched is left in this position for a sufficiently long time so that the capacitor is fully charged. R Randomized Variables s= 7.5 V R = 120 k2 C = 470 nF Otheexpertta.com A 17% Part (a) Calculate the maximum charge O on the capacitor (in coulombs). A 17% Part (b) The switch is moved from point a, but not connected to point b. What will happen to the voltage across the capacitor? E A 17% Part (c) The switch is now (at t= 0) moved to point b. Determine the current through resistor R (in amperes) the instant the switch is closed. You may assume the direction of this current is positive.
(S%) Problem 11: A bank of batteries, total emf ɛ = 7.5 V, is in a circuit with resistor R= 120 k2, capacitor C =470 nF, and two-pole switch S as shown. The switch is initially set to point a so that the batteries, resistor, and capacitor are in series. The switched is left in this position for a sufficiently long time so that the capacitor is fully charged. R Randomized Variables s= 7.5 V R = 120 k2 C = 470 nF Otheexpertta.com A 17% Part (a) Calculate the maximum charge O on the capacitor (in coulombs). A 17% Part (b) The switch is moved from point a, but not connected to point b. What will happen to the voltage across the capacitor? E A 17% Part (c) The switch is now (at t= 0) moved to point b. Determine the current through resistor R (in amperes) the instant the switch is closed. You may assume the direction of this current is positive.
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Transcribed Image Text:HW-6 Begin Date: 3/22/2021 12:01:00 AM -- Due Date: 3/30/2021 11:00:00 PM End Date: 3/30/2021 11:00:00 PM
(8%) Problem 11: A bank of batteries, total emf ɛ = 7.5 V, is in a circuit with resistor R 120 kS2,
capacitor C= 470 nF, and twvo-pole switch S as shown. The switch is initially set to point a so that the
batteries, resistor, and capacitor are in series. The switched is left in this position for a sufficiently
long time so that the capacitor is fully charged.
R
a
Randomized Variables
3.
s= 7.5 V
R= 120 kN
C = 470 nF
Otheexpertta.com
A 17% Part (a) Calculate the maximum charge Q on the capacitor (in coulombs).
A 17% Part (b) The switch is moved from point a, but not connected to point b. What will happen to the voltage across the capacitor?
A 17% Part (c) The switch is now (at t=0) moved to point b. Determine the current through resistor R (in amperes) the instant the switch is closed. You
may assume the direction of this current is positive.
A 17% Part (d) Determine an expression for the voltage across the capacitor as a function of time, with the switch at position b, in terms of the emf ɛ.
A 17% Part (e) Calculate the time (in seconds), after contact is made by the switch at position b, that it will take the capacitor to discharge halfway.
D A 17% Part (f) Calculate the current through the resistor (in amperes) at time t= 25 ms after the switch is connected to point b.
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