RC Circuit and Current Conceptual Question Part A How does the current through R
ID: 1267222 • Letter: R
Question
RC Circuit and Current Conceptual Question
Part A
How does the current through R1 compare with the current through R2 immediately after the switch is first closed?
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ANSWER:
The current through R1 How does the current through compare with the current through immediately after the switch is first closed?
the current through R2.
Part B
How does the current through R1 compare with the current through R2 a very long time after the switch has been closed?
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ANSWER:
The current through R1 How does the current through compare with the current through a very long time after the switch has been closed?
the current through R2.
Part C
How does the current through R1 compare with the current through R2 immediately after the switch is opened (after being closed a very long time)?
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ANSWER:
The current through R1 How does the current through compare with the current through immediately after the switch is opened (after being closed a very long time)?
the current through R2.
is greater than is less than is equal toExplanation / Answer
a)
BY Kirchhoff's Juction rule ,current through R1 is given by
IR1=IR2+Ic
so IR1>IR2
Answer :greater than.
b)
After Long time ,capacitor gets fully charged and no current flows through it i.e it acts as open circuit ,so
Current through R1 is
IR1=IR2
Answer:Equal to
c)
After switch is open ,resistor R1 and battery will be out of circuit ,so capacitor discharges through R2 .
IR1<IR2
Answer :Less than
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