We repeat the experiment from the video, but this time we connect the wires in parallel...
We repeat the experiment from the video, but this time we connect the wires in parallel rather than in series. Which wire will now dissipate the most heat?
| Both wires will dissipate the same amount of heat. | |
| The Nichrome wire (resistance 2.7 ?) | |
| The copper wire (resistance 0.1 ?) |
Homework Answers
The power P dissipated in a wire equals V2/R, where V is the potential difference across the wire and R is the wire's resistance. In a parallel circuit, the potential difference (voltage) is the same across both wires. Therefore, the lower-resistance copper wire dissipates more power and hence is more likely to ignite its paper.
Add Answer to:
We repeat the experiment from the
video, but this time we connect the wires in parallel...
We have two very long wires, which are parallel to each other pointing to the right...
We have two very long wires, which are parallel to each other pointing to the right in front of us. The pair of wire is horizontal. The wire closest to us carries a charge per unit length of 1mC/m and the other the opposite charge. The two wires are 1m apart and both move together at 100m/s along the wire to the right. We are looking at what happens in the middle region of the two wires (not the end)....
18 in detail please. 14. To charge a dead battery do you connect the (+) of...
18 in detail please.
14. To charge a dead battery do you connect the (+) of the good battery to (+) of the dead battery and (-) of good to () of bad or the (+) of good battery to (-) of dead battery and () of good to (+) of bad battery? 15. Two copper wires of the same length and different diameters are connected in parallel In which case is (a) the resistance and (b) current in the...
5) The force between two parallel wires carrying electric current is repulsive when: A) The magnitude...
5) The force between two parallel wires carrying electric current is repulsive when: A) The magnitude of the current of both wires are the same. B) The direction of current in wires are opposite C) One of the wires is carrying no current D) The direction of the currents in wires are the same. E) Wires carrying different current values. 6) Ampere's law provides a convenient way of calculating: A) Electric field due to current distribution. B) Magnetic field due...
Suppose that we repeat the experiment in the video but use hand-held weights of different masses and different initial...
Suppose that we repeat the experiment in the video but use
hand-held weights of different masses and different initial speeds.
In each of the cases below, the demonstrator starts with her arms
extended (rotating at angular speed ?0) and then pulls her
arms in (rotating at angular speed ?f). Rank the cases
below based on their final angular speed ?f (that is, when
the demonstrator’s arms are pulled in), from slowest to fastest.
Since most of the mass of the...
From the experiment in Table 9, we see that in a parallel circuit, a) the current...
From the experiment in Table
9, we see that in a parallel circuit,
a) the current is divided among the components, the
component with the higher resistance has the larger
current
b) the current is divided among the components, the
component with the lower resistance has the larger
current
c) the current is the same at all points in the
circuit
d) the current is infinite at all points in the
circuit
1) Next, we will measure the electric current...
1. There are two straight and parallel wires, separated by a distance D. In the first...
1. There are two straight and parallel wires, separated by a distance D. In the first the current is i, while in the others it is 2i; both in the same sense. At what distance from the first wire will the magnetic field between the wires be zero? 2. A cable that is 5 meters above the ground has a current of 100 A. Determine the magnetic field at ground level. 3. An airplane flies at 200m / s in...
3. DRAM: How Big Can We Make Them? Nearly all devices that include some form of...
3. DRAM: How Big Can We Make Them? Nearly all devices that include some form of computational capability (phones, tablets, gaming consoles, laptops,.. use a type of memory known as Dynamic Random Access Memory (DRAM). DRAM is where the "working set" of instructions and data for a processor is typically stored, and the ability to pack an ever increasing number of bits on to a DRAM chip at low cost has been critical to the continued growth in computational capability...
The background section says that while heat is flowing from the test substance to the water...
The background section says that while heat is flowing from the test substance to the water and calorimeter, heat is also flowing out of the calorimeter to the surroundings. What experimental evidence do you have from the experiment that heat is flowing out of the calorimeter? A student ran the experiment described above on both lead and magnesium. He found that the increase in the water temperature in the calorimeter was much greater for magnesium than it was for lead....
1. OBSERVATIONAL EXPERIMENT: HOW TO INDUCE A CURRENT IN A COIL NOT CONNECTED TO A BATTERY...
1. OBSERVATIONAL EXPERIMENT: HOW TO INDUCE A CURRENT IN A COIL NOT CONNECTED TO A BATTERY The goal of this experiment is to observe 2 sets of videos to find a pattern for the conditions under which there is a current through a coil of wire that is not connected to a battery. Available equipment: Computer with internet connection a) First, make sure you know what a galvanometer is. A galvanometer is a device that registers electric current through it....
Pease answer questions 4 and 5! Thank you so much! 4. Connect the 2nd resistor in...
Pease answer questions 4 and 5! Thank you so much!
4. Connect the 2nd resistor in parallel with the 1st
resistor and connect that combination to the battery.
Measure
the following:
The
current passing through the R1, I1 = ___0.0058____ A
The
current passing through the R2, I2 = ___0.0031____ A
The
current supplied by the battery, I = ___0.0092____ A
Calculate I1 + I2 = ____________ A
Is the following statement true? I = I1 +...
18 in detail please.
14. To charge a dead battery do you connect the (+) of the good battery to (+) of the dead battery and (-) of good to () of bad or the (+) of good battery to (-) of dead battery and () of good to (+) of bad battery? 15. Two copper wires of the same length and different diameters are connected in parallel In which case is (a) the resistance and (b) current in the...
5) The force between two parallel wires carrying electric current is repulsive when: A) The magnitude of the current of both wires are the same. B) The direction of current in wires are opposite C) One of the wires is carrying no current D) The direction of the currents in wires are the same. E) Wires carrying different current values. 6) Ampere's law provides a convenient way of calculating: A) Electric field due to current distribution. B) Magnetic field due...
Suppose that we repeat the experiment in the video but use
hand-held weights of different masses and different initial speeds.
In each of the cases below, the demonstrator starts with her arms
extended (rotating at angular speed ?0) and then pulls her
arms in (rotating at angular speed ?f). Rank the cases
below based on their final angular speed ?f (that is, when
the demonstrator’s arms are pulled in), from slowest to fastest.
Since most of the mass of the...
From the experiment in Table
9, we see that in a parallel circuit,
a) the current is divided among the components, the
component with the higher resistance has the larger
current
b) the current is divided among the components, the
component with the lower resistance has the larger
current
c) the current is the same at all points in the
circuit
d) the current is infinite at all points in the
circuit
1) Next, we will measure the electric current...
3. DRAM: How Big Can We Make Them? Nearly all devices that include some form of computational capability (phones, tablets, gaming consoles, laptops,.. use a type of memory known as Dynamic Random Access Memory (DRAM). DRAM is where the "working set" of instructions and data for a processor is typically stored, and the ability to pack an ever increasing number of bits on to a DRAM chip at low cost has been critical to the continued growth in computational capability...
The background section says that while heat is flowing from the test substance to the water and calorimeter, heat is also flowing out of the calorimeter to the surroundings. What experimental evidence do you have from the experiment that heat is flowing out of the calorimeter? A student ran the experiment described above on both lead and magnesium. He found that the increase in the water temperature in the calorimeter was much greater for magnesium than it was for lead....
1. OBSERVATIONAL EXPERIMENT: HOW TO INDUCE A CURRENT IN A COIL NOT CONNECTED TO A BATTERY The goal of this experiment is to observe 2 sets of videos to find a pattern for the conditions under which there is a current through a coil of wire that is not connected to a battery. Available equipment: Computer with internet connection a) First, make sure you know what a galvanometer is. A galvanometer is a device that registers electric current through it....
Pease answer questions 4 and 5! Thank you so much!
4. Connect the 2nd resistor in parallel with the 1st
resistor and connect that combination to the battery.
Measure
the following:
The
current passing through the R1, I1 = ___0.0058____ A
The
current passing through the R2, I2 = ___0.0031____ A
The
current supplied by the battery, I = ___0.0092____ A
Calculate I1 + I2 = ____________ A
Is the following statement true? I = I1 +...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago