For an ideal battery , closing the switch in the figure (Figure 1) does not affect the brightness of bulb A. In practi...
For an ideal battery , closing the switch in the figure
(Figure 1)
does not affect the brightness of bulb A. In practice, bulb A dims
just a little when the switch closes. To see why, assume
that the 1.5 V battery has an internal resistance
and that the resistance of a glowing bulb is
.
What is the current through bulb A after the switch has closed?
By what percent does the current through A change when the switch is closed?
Homework Answers
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For an ideal battery , closing the switch in the figure (Figure 1) does not affect the brightness of bulb A. In practi...
For an ideal battery (r = 0 Ω), closing the switch in (Figure 1)does not affect...
For an ideal battery (r = 0 Ω), closing the switch in
(Figure 1)does not affect the brightness of bulb A. In practice,
bulb A dims just a little when the switch closes. To see
why, assume that the 1.50 V battery has an internal resistance
r = 0.90 Ω and that the resistance of a glowing bulb is
R = 8.00 Ω.
1. What is the current through bulb A when the switch is open?
ANS: 0.17A
2. What...
3. For an ideal battery (r- 02), closing the switch in the following figure does not...
3. For an ideal battery (r- 02), closing the switch in the following figure does not affect the brightness of bulb A. In reality, when a real battery with an non zero internal resistance is used, bulb A dims just a little when the switch closes. To see why, assume that the 1.5V battery has an internal resistance r = 0.5 Ω and that the resistance of a glowing bulb is R- 6S 1.5v÷ : lamp A amp B (a)...
By what percent does the current through A change when the switch is closed? I just...
By what percent does the
current through A change when the switch is closed?
I just need Part C. I can't figure it out.
Problem 28.54 For an ideal battery (r 02), closing the switch in (Figure 1) does not affect the brightness of bulb A. In practice, bulb A dims just a little when the switch closes. To see why, assume that the 1.50 V battery has an internal resistance 0.80 2 and that the resistance of a glowing...
Hw 28 02 Chapter 28 Problem 28.54 Part A Review What is the current through bulb...
Hw 28 02 Chapter 28 Problem 28.54 Part A Review What is the current through bulb A when the switch is open? Express yo For an ideal battery (r = 0 Ω), closing the switch in (Figure 1)does not affect the brightness of bulb A. In practice, bulb A dims just a little when the switch closes. To see why, assume that the 1.50 V battery has an internal resistance r 0.20 2 and that the resistance of a glowing...
please help with A and B If the battery in (Figure 1) were ideal, lightbulb A...
please help with A and B
If the battery in (Figure 1) were ideal, lightbulb A would not dim when the switch is closed. However, real batteries have a small internal resistance, which we can model as the 0.31 resistor shown inside the battery. In this case, the brightness of bulb A changes when the switch is closed. Assume E = 1.7 V. Figure 1 of 1 0.3.2 A 6.0 22 16.02 E Part A How much power does bulb...
Problem 3:[15]) A light bulb is connected in the circuit shown in the figure with the...
Problem 3:[15]) A light bulb is connected in the circuit shown in the figure with the switch S open. All the connecting leads have no appreciable resistance and the battery has no internal resistance. All resistances including the bulb have R=20 Ohms and the battery voltage is 1do Volts. (a) When the switch S is open and when it is closed, what are the effective resistances of the circuit in both cases? [5] (b) When the switch is open and...
1. A student observes the relative brightness of bulbs A and B with the switch both...
1. A student observes the relative brightness of bulbs A and B with the switch both open and closed. She finds the following: <(6 Switch open: Bulbs A and B have same brightness. Switch closed: Bulb A is brighter than when the switch was open; Bulb B does not light at all. a. With the switch closed, does current divide and recombine at the junctions? Does it divide evenly or unevenly? Explain. b. When the switch is closed, does the...
When switch S in the figure (Figure 1)is open, the voltmeter Vof the battery reads...
When switch S in the figure (Figure 1)is open, the voltmeter V
of the battery reads 3.13 V . When the switch is closed, the
voltmeter reading drops to 2.99 V , and the ammeter A reads 1.70 A
. Assume that the two meters are ideal, so they don't affect the
circuit.1) Find the emf.2) Find the internal resistance of the battery.3) Find the circuit resistance R.
Bulb 3.- 5 points A light bulb is connected in the circuit shown in the figure...
Bulb 3.- 5 points A light bulb is connected in the circuit shown in the figure with the switch Sopen. All the connecting leads have no appreciable resistance and the battery has no internal resistance. When we close the switch, which statements below accurately describe the behavior of the circuit? (There may be more than one correct choice.) w 3 R A) The brightness of the bulb will increase. B) The brightness of the bulb will degrease. C) The brightness...
There will be a flow from the battery when the switch is open and, for the sake of discussion, we...
need help to do the pressure and flow parts, heres a pic of the
circuit
There will be a flow from the battery when the switch is open and, for the sake of discussion, we'1 call that flow I glow. Assume that the obstacle presented by any of the identical bulbs is L no matter what flow goes through it. (This is equivalent to; assume that the bulbs are ideal') Copy the following table into your pre-lab Table 6; Pressure...
For an ideal battery (r = 0 Ω), closing the switch in
(Figure 1)does not affect the brightness of bulb A. In practice,
bulb A dims just a little when the switch closes. To see
why, assume that the 1.50 V battery has an internal resistance
r = 0.90 Ω and that the resistance of a glowing bulb is
R = 8.00 Ω.
1. What is the current through bulb A when the switch is open?
ANS: 0.17A
2. What...
3. For an ideal battery (r- 02), closing the switch in the following figure does not affect the brightness of bulb A. In reality, when a real battery with an non zero internal resistance is used, bulb A dims just a little when the switch closes. To see why, assume that the 1.5V battery has an internal resistance r = 0.5 Ω and that the resistance of a glowing bulb is R- 6S 1.5v÷ : lamp A amp B (a)...
By what percent does the
current through A change when the switch is closed?
I just need Part C. I can't figure it out.
Problem 28.54 For an ideal battery (r 02), closing the switch in (Figure 1) does not affect the brightness of bulb A. In practice, bulb A dims just a little when the switch closes. To see why, assume that the 1.50 V battery has an internal resistance 0.80 2 and that the resistance of a glowing...
Hw 28 02 Chapter 28 Problem 28.54 Part A Review What is the current through bulb A when the switch is open? Express yo For an ideal battery (r = 0 Ω), closing the switch in (Figure 1)does not affect the brightness of bulb A. In practice, bulb A dims just a little when the switch closes. To see why, assume that the 1.50 V battery has an internal resistance r 0.20 2 and that the resistance of a glowing...
please help with A and B
If the battery in (Figure 1) were ideal, lightbulb A would not dim when the switch is closed. However, real batteries have a small internal resistance, which we can model as the 0.31 resistor shown inside the battery. In this case, the brightness of bulb A changes when the switch is closed. Assume E = 1.7 V. Figure 1 of 1 0.3.2 A 6.0 22 16.02 E Part A How much power does bulb...
Problem 3:[15]) A light bulb is connected in the circuit shown in the figure with the switch S open. All the connecting leads have no appreciable resistance and the battery has no internal resistance. All resistances including the bulb have R=20 Ohms and the battery voltage is 1do Volts. (a) When the switch S is open and when it is closed, what are the effective resistances of the circuit in both cases? [5] (b) When the switch is open and...
1. A student observes the relative brightness of bulbs A and B with the switch both open and closed. She finds the following: <(6 Switch open: Bulbs A and B have same brightness. Switch closed: Bulb A is brighter than when the switch was open; Bulb B does not light at all. a. With the switch closed, does current divide and recombine at the junctions? Does it divide evenly or unevenly? Explain. b. When the switch is closed, does the...
When switch S in the figure (Figure 1)is open, the voltmeter V
of the battery reads 3.13 V . When the switch is closed, the
voltmeter reading drops to 2.99 V , and the ammeter A reads 1.70 A
. Assume that the two meters are ideal, so they don't affect the
circuit.1) Find the emf.2) Find the internal resistance of the battery.3) Find the circuit resistance R.
Bulb 3.- 5 points A light bulb is connected in the circuit shown in the figure with the switch Sopen. All the connecting leads have no appreciable resistance and the battery has no internal resistance. When we close the switch, which statements below accurately describe the behavior of the circuit? (There may be more than one correct choice.) w 3 R A) The brightness of the bulb will increase. B) The brightness of the bulb will degrease. C) The brightness...
need help to do the pressure and flow parts, heres a pic of the
circuit
There will be a flow from the battery when the switch is open and, for the sake of discussion, we'1 call that flow I glow. Assume that the obstacle presented by any of the identical bulbs is L no matter what flow goes through it. (This is equivalent to; assume that the bulbs are ideal') Copy the following table into your pre-lab Table 6; Pressure...
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