A 16.0- capacitor is charged to a potential of 50.0 and then discharged through a 265- resistor.

Exercise 26.50
A 16.0- capacitor is charged to a potential of 50.0 and then discharged through a 265- resistor.
Part A
How long does it take the capacitor to lose half of its charge?
Express your answer with the appropriate units.
ANSWER:
Part B
How long does it take the capacitor to lose half of its stored energy?
Express your answer with the appropriate units.
ANSWER:
Exercise 26.48
The current through the current through .R1
is greater than
is less than
is equal to
R2
R1 R2
The current through the current through .R1
is greater than
is less than
is equal to
R2
μF V Ω
= t
= t
https://session.masteringphysics.com/myct/assignmentPrintView?displayMode=studentView&assignmentID=6893051 7/9
A 1.70- capacitor is charging through a 14.0- resistor using a 12.0- battery.
Part A
What will be the current when the capacitor has acquired 1/4 of its maximum charge?
ANSWER:
Part B
Will it be 1/4 of the maximum current?
ANSWER:
Exercise 26.46
A resistor and capacitor are connected in series to an emf source. The time constant for the circuit is 0.780 .
Part A
A second capacitor, identical to the first, is added in series. What is the time constant for this new circuit?
Express your answer with the appropriate units.
ANSWER:
Part B
In the original circuit a second capacitor, identical to the first, is connected in parallel with the first capacitor. What is the time constant for this new circuit?
Express your answer with the appropriate units.
ANSWER:
Problem 26.38
μF Ω V
= I A
yes
no
s
= τ
= τ
https://session.masteringphysics.com/myct/assignmentPrintView?displayMode=studentView&assignmentID=6893051 8/9
Part A
A 4.0-μF capacitor that is initially uncharged is connected in series with a 4.0-k resistor and an ideal 17.0-V battery. How much energy is stored in the capacitor 17 ms after the battery has been connected?
ANSWER:
Problem 26.57
Part A
Find the potential of point with respect to point in the figure .
Express your answer using two significant figures.
ANSWER:
Part B
If points and are connected by a wire with negligible resistance, find the magnitude of the current in the 10.0 battery.
Express your answer using two significant figures.
ANSWER:
Ω
890 nJ
15,000 kJ
25 µJ
250,000 nJ
a b
= Vab V
a b V
= I A
https://session.masteringphysics.com/myct/assignmentPrintView?displayMode=studentView&assignmentID=6893051 9/9
Problem 26.69
A resistor consumes electrical power when connected to an emf . When resistor is connected to the same emf, it consumes electrical power .
Part A
In terms of and , what is the total electrical power consumed when they are both connected to this emf source in parallel?
ANSWER:
Part B
In terms of and , what is the total electrical power consumed when they are both connected to this emf source in series?
ANSWER:
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R1 P1 E R2 P2
P1 P2
= Ptot
P1 P2
= Ptot