Homework Answers
The voltage across the two resistors are the same
since P = V I
Where V is the voltage and I is the current through the bulbs
So the current and the power are proportional quantities.
P = I2 R
Since the power and the current are proportional quantities, For
the bulbs with greater power, the current through them will be
higher, so the resistance is smaller
For the 100 W bulb , the resistance is greater compared to the bulb
with 60 W power
The voltage across the two resistors are the same
since P = V I
Where V is the voltage and I is the current through the bulbs
So the current and the power are proportional quantities.
Also P = I2 R
Since the power and the current are proportional quantities, For
the bulbs with greater power, the current through them will be
higher, so the resistance is smaller
For the 100 W bulb , the resistance is greater compared to the bulb
with 60 W power
Add Answer to:
Two light bulbs of 60 watts and 100 watts are wired in parallel. What light bulb...
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...
Consider a circuit with three bulbs wired in parallel. Explain how to do each problem, include...
Consider a circuit with three bulbs wired in parallel. Explain how to do each problem, include a diagram of the circuit and solve it. 1. If each bulb has resistance R and they were wired IN SERIES instead, what multiple of R is the equivalent resistance of this circuit? * 2. If you add another bulb wired in parallel, by what factor does the brightness of the others change? * 3. If each bulb has resistance R, what multiple of...
(a) What is the resistance of ten 100-W light bulbs connected in parallel? (b) in series?...
(a) What is the resistance of ten 100-W light bulbs connected in parallel? (b) in series? The resistance of a 100-W, 120-V light bulb is 144 Ohms.
If a 100-watt incandescent light bulb puts out 95-watts of heat, what is the efficiency of...
If a 100-watt incandescent light bulb puts out 95-watts of heat, what is the efficiency of the bulb? (this is approximately how efficient incandescent light bulbs are!)
Consider the three identical light bulbs shown in the circuit. Bulbs B and C are wired...
Consider the three identical light bulbs shown in the circuit. Bulbs B and C are wired in series with each other and are wired in parallel with bulb A. When the bulbs are connected to the battery as shown, how does the brightness of each bulb compare to the others? Don't forget to write your explanation on your scratch work and upload at the end of this exam for partial credit. Bulbs B and Care equally bright, but bulb A...
Two light bulbs have resistances of 40 2 and 802. The two light bulbs are now...
Two light bulbs have resistances of 40 2 and 802. The two light bulbs are now connected in parallel across the 12 V supply. Find the current through each bulb. Express your answer in amperes separated by a comma. VASO 140, 180 = A Submit Request Answer Part E The two light bulbs are connected in parallel across the 12 V supply. Find the power dissipated in each bulb. Express your answer in watts separated by a comma. LOAD ?...
The powers of two light-bulbs are 60 W and 125 W when connected in parallel across...
The powers of two light-bulbs are 60 W and 125 W when connected in parallel across a 130-V source. What is the power of the bulb that will output less power when the two light-bulbs are connected in series with the same source?
In the circuit on the right, a light bulb, two batteries, and five resistors are wired...
In the circuit on the right, a light bulb, two batteries, and five resistors are wired to form a circuit. For the following question, assume the color codes on resistors are not accurate (that is, use stated values) and assume each battery has 3.75 Q of internal resistance. 2 V 339 Q 925 Ω If the internal resistance of the light bulb is 531 calculate the power dissipation of the bulb. Number 0063 7 V 181 Ω 1810
Two light bulbs rated at 60W/120V are connected in parallel. What is the total power used...
Two light bulbs rated at 60W/120V are connected in parallel. What is the total power used by the bulb ?
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 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...
Consider the three identical light bulbs shown in the circuit. Bulbs B and C are wired in series with each other and are wired in parallel with bulb A. When the bulbs are connected to the battery as shown, how does the brightness of each bulb compare to the others? Don't forget to write your explanation on your scratch work and upload at the end of this exam for partial credit. Bulbs B and Care equally bright, but bulb A...
Two light bulbs have resistances of 40 2 and 802. The two light bulbs are now connected in parallel across the 12 V supply. Find the current through each bulb. Express your answer in amperes separated by a comma. VASO 140, 180 = A Submit Request Answer Part E The two light bulbs are connected in parallel across the 12 V supply. Find the power dissipated in each bulb. Express your answer in watts separated by a comma. LOAD ?...
In the circuit on the right, a light bulb, two batteries, and five resistors are wired to form a circuit. For the following question, assume the color codes on resistors are not accurate (that is, use stated values) and assume each battery has 3.75 Q of internal resistance. 2 V 339 Q 925 Ω If the internal resistance of the light bulb is 531 calculate the power dissipation of the bulb. Number 0063 7 V 181 Ω 1810
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...
Most questions answered within 3 hours.
-
D. A student completed 20 courses in the School of Arts and
Sciences. Her grades in...
asked 59 minutes ago -
teo
pucks moving on a frictionless air table are about to collide. the
1.5 kg puck...
asked 1 hour ago -
Problem #1
The area between Z = 0 and Z = 2.50
The area between Z...
asked 2 hours ago -
1. What is the meaning of the term communication style?
2. What are the benefits to...
asked 2 hours ago -
9.) You are buying a car that cost $26,500. You make payments of
$412 each month...
asked 2 hours ago -
. Suppose a discrete random variable has probability
distribution
P(x) = .2 if x = 0...
asked 3 hours ago -
Under the influence of its drive force, a snowmobile is moving
at a constant velocity along...
asked 4 hours ago -
Why do organizations decline? What steps can top
management take to halt, decline, and restore organizational...
asked 3 hours ago -
What mechanisms Drive speciation??
(I.e. what was Dawins theory on the orgin of species, and how...
asked 5 hours ago -
The manager at a car assembly plant believes that the mean
assembly time for a car...
asked 6 hours ago -
Which of the following is true of electron capture?
A) It decreases the nuclide's mass number...
asked 8 hours ago -
Assuming an efficiency of 43.10%, calculate the actual yield of
magnesium nitrate formed from 114.9 g...
asked 8 hours ago