Optional Ch. 25 28 review problems on Mastering Physics Quiz #2 - - PowerPoint PPT Presentation

optional ch 25 28 review problems on mastering physics
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Optional Ch. 25 28 review problems on Mastering Physics Quiz #2 - - PowerPoint PPT Presentation

Ch 27 HW due Friday, March 13 (today) @ 23:59 Optional Ch. 25 28 review problems on Mastering Physics Quiz #2 Friday, March 20 QuickCheck 28.19 The capacitor is initially unchanged. Immediately after the switch closes, the


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SLIDE 1

❑ Ch 27 HW due Friday, March 13 (today) @ 23:59 ❑ Optional Ch. 25 – 28 review problems on Mastering Physics ❑ Quiz #2 – Friday, March 20

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SLIDE 2

The capacitor is initially unchanged. Immediately after the switch closes, the capacitor voltage is

QuickCheck 28.19

  • A. 0 V
  • B. Somewhere between

0 V and 6 V

  • C. 6 V
  • D. Undefined.
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SLIDE 3

QuickCheck 28.19

  • A. 0 V
  • B. Somewhere between

0 V and 6 V

  • C. 6 V
  • D. Undefined.

The capacitor is initially unchanged. Immediately after the switch closes, the capacitor voltage is

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SLIDE 4

Which capacitor discharges more quickly after the switch is closed?

QuickCheck 28.18

  • A. Capacitor A
  • B. Capacitor B
  • C. They discharge at

the same rate.

  • D. Can’t say without

knowing the initial amount of charge.

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SLIDE 5

Smaller time constant τ = RC

Which capacitor discharges more quickly after the switch is closed?

QuickCheck 28.18

  • A. Capacitor A
  • B. Capacitor B
  • C. They discharge at

the same rate.

  • D. Can’t say without

knowing the initial amount of charge.

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SLIDE 6

QuickCheck 28.20

The red curve shows how the capacitor charges after the switch is closed at t = 0. Which curve shows the capacitor charging if the value of the resistor is reduced?

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SLIDE 7

Smaller time constant. Same ultimate amount

  • f charge.

The red curve shows how the capacitor charges after the switch is closed at t = 0. Which curve shows the capacitor charging if the value of the resistor is reduced?

QuickCheck 28.20