The circuit in the figure has a capacitor, C = 4.40 mF, connected to a V = 6.0-V

Question

The circuit in the figure has a capacitor, C = 4.40 mF, connected to a V = 6.0-V battery, two switches, and three resistors (R1 = 350 ?, R2 = 220 ?, and R3 = 130 ?. Initially, the capacitor is uncharged and both of the switches are open.

a) Switch S1 is closed. What is the current flowing out of the battery immediately after switch S1 is closed?

b) After 10.0 min, switch S2 is closed. What is the current flowing out of the battery immediately after switch S2 has been closed?

c) What is the current flowing out of the battery 10.0 min after switch S2 has been closed?

d) After another 10.0 min, switch S1 is opened. How long will it take until the current in the R2 = 220-? resistor is below 1.00 mA?

Explanation / Answer

a. 6/(350+130)=0.0125A =12.5mA b.i=12.5(1-e^-t/RC)

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.