Two different light bulbs (RD> RE) are connected as shown below. If the internal resistance of the battery is not considered negligible (r ≠ 0), what happens to the current through the bulb D when the switch is closed?
a) it decreases somewhat
b) it increases significantly
c) it stays the same
d) it increases somewhat
e) it decreases significantly
Homework Answers
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Two different light bulbs (RD> RE) are
connected as shown below. If the internal resistance of...
Two different light bulbs (RD> RE) are connected as shown below. If the internal resistance of...
Two different light bulbs (RD> RE) are
connected as shown below. If the internal resistance of the battery
is not considered negligible (r ≠ 0), how do you compare the
brightness of two light bulbs in the circuit when the switch is
closed?
a) D is brighter than E
b) E is brighter than D
c) Both are equally bright
S CS2 CS1 D E
Question 5 1 pts Three identical light bulbs are connected to a battery as shown in...
Question 5 1 pts Three identical light bulbs are connected to a battery as shown in the circuit below. After the switch Sis closed, S L M light bulb N grows brighter. light bulb L grows dimmer. the power supplied by the battery increases. the current through the battery decreases.
A 12-volt battery is connected to two light bulbs, as drawn in Figure 1. Light bulb...
A 12-volt battery is connected to two light bulbs, as drawn in
Figure 1. Light bulb 1 has resistance 3 ohms, while light bulb 2
has resistance 6 ohms. The battery has essentially no internal
resistance, and all the wires are essentially resistanceless,
too.
When a light bulb is unscrewed, no current flows through that
branch of the circuit. For instance, if light bulb 2 is unscrewed,
current flows only around the lower loop of the circuit, which
consists of...
Two batteries, a capacitor, and two light bulbs are connected by wires. The batteries have a...
Two batteries, a capacitor, and two light bulbs are connected by
wires. The batteries have a potential difference emf, the capacitor
has capacitance C, and the bulbs have resistance R. Initially the
capacitor is uncharged and the switch has been closed.
A)Write down the three loop rules and the node rule for this
circuit and label the currents on the picture.
B) Find the initial currents running through each bulb.
C)What is the current running through each bulb a long...
Identical batteries with negligible internal resistance are connected in different arrangements to the same light bulb,...
Identical batteries with negligible internal resistance are connected in different arrangements to the same light bulb, as shown in the figure. For which arrangement will the bulb be the brightest? On A B C OB
Three identical light bulbs labeled A, B and C are connected to a battery as shown...
Three identical light bulbs labeled A, B and C are connected to
a battery as shown in the circuit below. When the switch is closed,
which of the following statements is true about the
currentthrough the light bulbs?
A. No current flows through bulbs B and C because the B/C loop
does not contain a battery. Only A has a current running through
it.
B. The current through A is equal to the sum of the currents
through B...
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...
Four identical bulbs are connected to a battery as shown in the figure. Then the fourth...
Four identical bulbs are connected to a battery as shown in the figure. Then the fourth bulb is removed. BEFORE the fourth bulb is removed, how does the brightness in bulbs 1, 2, 3, and 4 compare? 3 1 3 2 2 Before After 01 > 2>3 > 4 O 1 > 2> 3 = 4 O 1 = 2 = 3 = 4 01 > 2 = 3 = 4 O 1 = 2 > 3 = 4 Submit...
Two light bulbs are connected in parallel, and then connected to a battery, as shown in...
Two light bulbs are connected in parallel, and then connected to
a battery, as shown in Fig. 4.51(a). You observe that bulb 1 is
twice as bright as bulb 2. Assuming that the brightness of a bulb
is proportional to the power dissipated in the bulb’s resistor,
which bulb’s resistor is larger, and by what factor? The bulbs are
now connected in series ,as shown in Fig.4.51(b). Which bulb is
brighter, and by what factor? How bright is each bulb...
A circuit is made of two 1.4 volt batteries and three light bulbs as shown in...
A circuit is made of two 1.4 volt batteries and three light bulbs as shown in the figure. When the switch is closed and the buibs are glowing, bulb I hasa resistance of 11 ohms, bulb 2 has a resistance of 44 ohms, bulb 3 has a resistance of 26 ohms, and the copper connecting wires have negligible resistance. You can also neglect the internal resistance of the batteries (a) With the swtch open, indicate the approximate surface charge on...
Two different light bulbs (RD> RE) are
connected as shown below. If the internal resistance of the battery
is not considered negligible (r ≠ 0), how do you compare the
brightness of two light bulbs in the circuit when the switch is
closed?
a) D is brighter than E
b) E is brighter than D
c) Both are equally bright
S CS2 CS1 D E
Question 5 1 pts Three identical light bulbs are connected to a battery as shown in the circuit below. After the switch Sis closed, S L M light bulb N grows brighter. light bulb L grows dimmer. the power supplied by the battery increases. the current through the battery decreases.
A 12-volt battery is connected to two light bulbs, as drawn in
Figure 1. Light bulb 1 has resistance 3 ohms, while light bulb 2
has resistance 6 ohms. The battery has essentially no internal
resistance, and all the wires are essentially resistanceless,
too.
When a light bulb is unscrewed, no current flows through that
branch of the circuit. For instance, if light bulb 2 is unscrewed,
current flows only around the lower loop of the circuit, which
consists of...
Two batteries, a capacitor, and two light bulbs are connected by
wires. The batteries have a potential difference emf, the capacitor
has capacitance C, and the bulbs have resistance R. Initially the
capacitor is uncharged and the switch has been closed.
A)Write down the three loop rules and the node rule for this
circuit and label the currents on the picture.
B) Find the initial currents running through each bulb.
C)What is the current running through each bulb a long...
Identical batteries with negligible internal resistance are connected in different arrangements to the same light bulb, as shown in the figure. For which arrangement will the bulb be the brightest? On A B C OB
Three identical light bulbs labeled A, B and C are connected to
a battery as shown in the circuit below. When the switch is closed,
which of the following statements is true about the
currentthrough the light bulbs?
A. No current flows through bulbs B and C because the B/C loop
does not contain a battery. Only A has a current running through
it.
B. The current through A is equal to the sum of the currents
through B...
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...
Four identical bulbs are connected to a battery as shown in the figure. Then the fourth bulb is removed. BEFORE the fourth bulb is removed, how does the brightness in bulbs 1, 2, 3, and 4 compare? 3 1 3 2 2 Before After 01 > 2>3 > 4 O 1 > 2> 3 = 4 O 1 = 2 = 3 = 4 01 > 2 = 3 = 4 O 1 = 2 > 3 = 4 Submit...
Two light bulbs are connected in parallel, and then connected to
a battery, as shown in Fig. 4.51(a). You observe that bulb 1 is
twice as bright as bulb 2. Assuming that the brightness of a bulb
is proportional to the power dissipated in the bulb’s resistor,
which bulb’s resistor is larger, and by what factor? The bulbs are
now connected in series ,as shown in Fig.4.51(b). Which bulb is
brighter, and by what factor? How bright is each bulb...
A circuit is made of two 1.4 volt batteries and three light bulbs as shown in the figure. When the switch is closed and the buibs are glowing, bulb I hasa resistance of 11 ohms, bulb 2 has a resistance of 44 ohms, bulb 3 has a resistance of 26 ohms, and the copper connecting wires have negligible resistance. You can also neglect the internal resistance of the batteries (a) With the swtch open, indicate the approximate surface charge on...
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