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20837731 A certain toaster has a heating element made of Nichrome resistance wire. When the toaster...
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...
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
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.
When a heating a coil made of 34.0 m of 1.0 mm diameter Nichrome wire is...
When a heating a coil made of 34.0 m of 1.0 mm diameter Nichrome wire is in use, its temperature increases from 20°C to 140°C. The heating coil in connected to a 9V battery. What will happen to the current in the heating coil as the temperature increases? A) The current will increase B) The current will decrease C) The current will remain the same D) The current will increase and then decrease
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)
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
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
If all questions can be answered thank you! 5. [-/1.42 points] DETAILS MY NOTES ASK YOUR...
If all questions can be answered thank
you!
5. [-/1.42 points] DETAILS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Residential building codes typically require the use of 12-gauge copper wire (diameter 0.205 cm) for wiring receptacles. Such circuits carry currents as large as 20.0 A. If a wire of smaller diameter (with a higher gauge number) carried that much current, the wire could rise to a high temperature and cause a fire. (Table of resistivities) (a) Calculate the rate at...
A Nichrome heating element that has resistance 28.0? is connected to a battery that has emf...
A Nichrome heating element that has resistance 28.0? is connected to a battery that has emf 82.0V and internal resistance 1.6? . An aluminum cup with mass 0.130 kg contains 0.200 kg of water. The heating element is placed in the water and the electrical energy dissipated in the resistance of the heating element all goes into the cup and water. The element itself has very small mass. How much time does it take for the temperature of the cup...
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...
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
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
If all questions can be answered thank
you!
5. [-/1.42 points] DETAILS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Residential building codes typically require the use of 12-gauge copper wire (diameter 0.205 cm) for wiring receptacles. Such circuits carry currents as large as 20.0 A. If a wire of smaller diameter (with a higher gauge number) carried that much current, the wire could rise to a high temperature and cause a fire. (Table of resistivities) (a) Calculate the rate at...
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