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In this problem denotes the emf provided by the source, and is the resistance of each bulb. Part A Bulbs A, B, and C in the figure (Part A figure) are identical and the switch is an ideal conductor. How does closing the switch in the figure affect the potential difference?

 

In this problem denotes the emf provided by the so

 

Check all that apply.

The potential difference across A is unchanged.

The potential difference across B drops to zero.

The potential difference across A increases by 50%.

The potential difference across B drops by 50%.

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1 Nov 2020

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

 a) Two identical bulbs and a capacitor are connected to an ideal battery as shown. The capacitor is initially uncharged. a. Just after the switch is closed.

i) What is the potential difference across bulb A, across bulb B. across the capacitor C, and across the battery?

ii) Rank the currents ia, ib, ic, and ibat. Explain your reasoning.

 

b. A long time after the switch is closed:

i)rank the currents. Explain your reasoning.

ii)What is the potential difference across bulb A, bulb B, capacitor C, and the battery? Explain.

 

c. Summarize your results by describing the behavior of bulb A and of bulb B from just after the switch is closed until a long time later.

Bulb A Battery 2. Two identical bulbs and a capacitor are connected to an ideal battery as shown. The capacitor is initially

A series circuit consists of three identical lamps connected to a battery as shown in the figure. The switch S, originally open, is closed.

(i) What then happens to the brightness of lamp B?

(a) It increases.

(b) It decreases somewhat.

(c) It does not change.

(d) It drops to zero.

For parts (ii) to (vi), choose from the same possibilities (a) through (d).

(ii) What happens to the brightness of lamp C?

(iii) What happens to the current in the battery?

(iv) What happens to the potential difference across lamp A?

(v) What happens to the potential difference across lamp C?

(vi) What happens to the total power delivered to the lamps by the battery?

1.  The circuit at right contains a battery, a bulb, a switch, and a capacitor. The capacitor is initially uncharged. a) describe the behavior of the bulb in the two situations below.

i) Switch 1 is closed. Describe the behavior of the bulb from just after the switch is closed until a long time later. Explain.

ii) Switch 1 is now opened and switch 2 is closed. Describe the behavior of the bulb from just after the switch is closed until a long time later. Explain your reasoning.

2. A second identical bulb is now added to the circuit as shown. The capacitor is discharged.

i) Switch 1 is closed and 2 left open. Describe the behavior of bulbs B and C from just after the switch is closed until a long time later. Explain. How does the brightness of bulb C compare the brightness of bulb A in question i of part a?

ii) A long time after the switch 1 is closed, is the potential difference across the capacitor greater than, less than, or equal to the potential difference across the battery? 

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