When an electric heater is turned on, the Nichrome heating element is at 0° C and...
When an electric heater is turned on, the Nichrome heating element is at 0° C and draws a current of 17 A, with a potential difference of 120 V between the ends of the element. The element heats up to 794° C, with the potential difference constant. Find the final current. (The temperature coefficient of resistivity of Nichrome is 4.0 10-4 (°C)-1.)
Homework Answers
Add Answer to:
When an electric heater is turned on, the Nichrome heating
element is at 0° C and...
When an electric heater is turned on, the Nichrome heating element is at 0o C and...
When an electric heater is turned on, the Nichrome heating element is at 0o C and draws a current of 14 A, with a potential difference of 120 V between the ends of the element. The element heats up to 873° C, with the potential difference constant. Find the final current. (The temperature coefficient of resistivity of Nichrome is 4.0 × 10-4 (°C)-1.)
5. An electric heater has a Nichrome heating element with a resistance of 9 Ω at...
5. An electric heater has a Nichrome heating element with a resistance of 9 Ω at 20°C. When l 16 V are applied, the electric current heats the Nichrome wire to 1060 C What is the operating wattage of this heater? The temperature coefficient of resistivity of Nichrome is α-0.0004 C Watts
An electric heater has a Nichrome heating element with a resistance of 7 Ω at 20oC....
An electric heater has a Nichrome heating element with a resistance of 7 Ω at 20oC. When 118 V are applied, the electric current heats the Nichrome wire to 980oC. What is the operating wattage of this heater? (The temperature coefficient of resistivity of Nichrome is α = 0.0004 Co-1)
The heater element of a toaster is a 5.4 m length of nichrome wire, whose diameter...
The heater element of a toaster is a 5.4 m length of nichrome wire, whose diameter is 0.48 mm. The resistivity of nichrome at the operating temperature of the toaster is 1.3 × 10-6 Ω·m. Assume the toaster is operated at a constant voltage of 120 V. -When the heater element is at room temperature, is the resistivity in the nichrome wire greater than, less than, or equal to its resistivity when at operating temperature? Explain.
A certain toaster has a heating element made of Nichrome resistance wire. When the toaster is...
A certain toaster has a heating element made of Nichrome resistance wire. When the toaster is first connected to a 140-V source of potential difference and the wire is at a temperature of 20.0°C), the initial current is 1.70 A, but the current begins to decrease as the resistive element warms up. When the toaster reaches its final operating temperature, the current has dropped to 1.53 A. (a) Find the power the toaster converts when it is at its operating...
A certain toaster has a heating element made of Nichrome resistance wire. When the toaster is...
A certain toaster has a heating element made of Nichrome resistance wire. When the toaster is first connected to a 130-V source of potential difference (and the wire is at a temperature of 20.0°C), the initial current is 1.70 A, but the current begins to decrease as the resistive element warms up. When the toaster reaches its final operating temperature, the current has dropped to 1.53 A. (a) Find the power the toaster converts when it is at its operating...
20837731 A certain toaster has a heating element made of Nichrome resistance wire. When the toaster...
20837731 A certain toaster has a heating element made of Nichrome resistance wire. When the toaster is first connected to a 140-V source of potential difference (and the Initial current is 1.80 A, but the current begins to decrease as the resistive element warms up. When the toaster reaches its firal the wire is at a temperature of 20.0 c), final operating temperature, the current has dropped to 1.53 A a) Find the power the toaster converts when it is...
The heater element of a particular 120-V toaster is a 8.9-m length of nichrome wire, whose...
The heater element of a particular 120-V toaster is a 8.9-m length of nichrome wire, whose diameter is 0.86 mm. The resistivity of nichrome at the operating temperature of the toaster is 1.3
•17 A wire of Nichrome (a nickel-chromium-iron alloy com- monly used in heating elements) is 1.0...
•17 A wire of Nichrome (a nickel-chromium-iron alloy com- monly used in heating elements) is 1.0 m long and 1.0 mmº in cross-sectional area. It carries a current of 4.0 A when a 2.0 V potential difference is applied between its ends. Calculate the conductivity of Nichrome.
Question 12 1 pts A Nichrome wire is used as a heating element in a toaster....
Question 12 1 pts A Nichrome wire is used as a heating element in a toaster. From the moment the toaster is first turned on to the moment the wire reaches it maximum temperature, the current in the wire drops by 20% from its initial value. What is the temperature change in the wire? The temperature coefficient for Nichrome is a = 0.0004 (°C)-7. O 100°C O 500°C
When an electric heater is turned on, the Nichrome heating element is at 0o C and draws a current of 14 A, with a potential difference of 120 V between the ends of the element. The element heats up to 873° C, with the potential difference constant. Find the final current. (The temperature coefficient of resistivity of Nichrome is 4.0 × 10-4 (°C)-1.)
5. An electric heater has a Nichrome heating element with a resistance of 9 Ω at 20°C. When l 16 V are applied, the electric current heats the Nichrome wire to 1060 C What is the operating wattage of this heater? The temperature coefficient of resistivity of Nichrome is α-0.0004 C Watts
A certain toaster has a heating element made of Nichrome resistance wire. When the toaster is first connected to a 140-V source of potential difference and the wire is at a temperature of 20.0°C), the initial current is 1.70 A, but the current begins to decrease as the resistive element warms up. When the toaster reaches its final operating temperature, the current has dropped to 1.53 A. (a) Find the power the toaster converts when it is at its operating...
20837731 A certain toaster has a heating element made of Nichrome resistance wire. When the toaster is first connected to a 140-V source of potential difference (and the Initial current is 1.80 A, but the current begins to decrease as the resistive element warms up. When the toaster reaches its firal the wire is at a temperature of 20.0 c), final operating temperature, the current has dropped to 1.53 A a) Find the power the toaster converts when it is...
•17 A wire of Nichrome (a nickel-chromium-iron alloy com- monly used in heating elements) is 1.0 m long and 1.0 mmº in cross-sectional area. It carries a current of 4.0 A when a 2.0 V potential difference is applied between its ends. Calculate the conductivity of Nichrome.
Question 12 1 pts A Nichrome wire is used as a heating element in a toaster. From the moment the toaster is first turned on to the moment the wire reaches it maximum temperature, the current in the wire drops by 20% from its initial value. What is the temperature change in the wire? The temperature coefficient for Nichrome is a = 0.0004 (°C)-7. O 100°C O 500°C
Most questions answered within 3 hours.
-
An explosion breaks a 20.0-kg object into three parts. The
object is initially moving at a...
asked 24 minutes ago -
Calculate the approximate number of residues of Rubisco, which
is involved in carbon fixation in plants,...
asked 1 hour ago -
Other decisions about scientific claims can have a much broader
impact.ENERGYarrow-10x10.png, environment, health, security - all...
asked 2 hours ago -
I need to write a research paper and work cited about this
topic: The United States...
asked 2 hours ago -
Hello! I was wondering if I could have some help?
If the vapor pressure of carvone...
asked 3 hours ago -
An economist wants to estimate the mean per capita income (in
thousands of dollars) for a...
asked 3 hours ago -
What would be the input/output characteristic of a circuit
obtained by putting two of your 2's-complementers...
asked 3 hours ago -
In Drosophila, the transition from the syncytial blastoderm
stage to the cellular blastoderm stage is a...
asked 3 hours ago -
Project management question:
Name 3 different types of resources (hint: humans are one
type)
asked 4 hours ago -
Consider the following reaction: C 2H 2( g) + 2H 2( g) C 2H 6(
g)...
asked 4 hours ago -
Consider a 1.0 L buffer containing 0.092 mol L-1 HCOOH and 0.100
mol L-1 HCOO-. What...
asked 4 hours ago -
Koch Realty has owned a vacant land with a FMV of
$775,000 and an adjusted basis...
asked 4 hours ago