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Chapter 21 Problems Problem 21.41 Problem 21.41 Your toaster has a power cord with a resistance...
Your toaster has a power cord with a resistance of 2.2times10^-2 ohm connected in series with...
Your toaster has a power cord with a resistance of 2.2times10^-2 ohm connected in series with a 9.9 ohm nichrome heating element. The potential difference between the terminals of the toaster is 120 V. How much power is dissipated in the power cord? Express your answer using two significant figures. How much power is dissipated in the heating element? Express your answer using two significant figures.
Your toaster has a power cord with a resistance of 1.9×10−2 Ω connected in series with...
Your toaster has a power cord with a resistance of 1.9×10−2 Ω connected in series with a 9.7 Ω nichrome heating element. The potential difference between the terminals of the toaster is 120 V. How much power is dissipated in the power cord? (W) How much power is dissipated in the heating element? (kW)
Your toaster has a power cord with a resistance of 1.8×10−2 Ω connected in series with...
Your toaster has a power cord with a resistance of 1.8×10−2 Ω connected in series with a 9.9 Ω nichrome heating element. The potential difference between the terminals of the toaster is 120 V. Part A How much power is dissipated in the power cord? Express your answer using two significant figures. Pcord= W Part B How much power is dissipated in the heating element? Express your answer using two significant figures. Phe= kW
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...
Help with number 26 Holt Chapter 20 Practice problems? The diagram is above. Practice problems■mm mmm-29.For...
Help with number 26 Holt
Chapter 20 Practice problems? The diagram is above.
Practice problems■mm mmm-29.For thecircuit shown in Figure 20-39, determi 25. Find the equivalent resistance of the circuit shown e - a. the current in each resistor in Figure 20-36. (See Sample Problem 20C.) b. the potential difference across each resisto See Sample Problem 20D.) 30.0 V 6.0 Ω 18Ω 9.0 Ω 6.0Ω 9.0 Ω 12Ω Figure 20-36 12 V 3.0 Ω Figure 20-39 26. Find the equivalent...
Problem 2 A 2 V power supply with intenal resistance of 10 2 is connected to...
Problem 2 A 2 V power supply with intenal resistance of 10 2 is connected to a circuit as shown below 10 9 120 0 2V 120 0 out 1. What voltage appears across the power supply terminals (V)? 11 point 2. What voltage will be measured at Vau? 2 points 3. What voltage will be measured at Vat if the 120 2 resistors are replaced by 1 k2 resistors? [1 point]
A real battery is not just an emf. We can model a real 1.5 V battery as a 1.5 V emf in series with a resistor known as...
A real battery is not just an emf. We can model a real 1.5 V battery as a 1.5 V emf in series with a resistor known as the "internal resistance", as shown in the figure(Figure 1) . A typical battery has 1.0 Ω internal resistance due to imperfections that limit current through the battery. When there's no current through the battery, and thus no voltage drop across the internal resistance, the potential difference between its terminals is 1.5 V,...
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...
Your toaster has a power cord with a resistance of 2.2times10^-2 ohm connected in series with a 9.9 ohm nichrome heating element. The potential difference between the terminals of the toaster is 120 V. How much power is dissipated in the power cord? Express your answer using two significant figures. How much power is dissipated in the heating element? Express your answer using two significant figures.
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...
Help with number 26 Holt
Chapter 20 Practice problems? The diagram is above.
Practice problems■mm mmm-29.For thecircuit shown in Figure 20-39, determi 25. Find the equivalent resistance of the circuit shown e - a. the current in each resistor in Figure 20-36. (See Sample Problem 20C.) b. the potential difference across each resisto See Sample Problem 20D.) 30.0 V 6.0 Ω 18Ω 9.0 Ω 6.0Ω 9.0 Ω 12Ω Figure 20-36 12 V 3.0 Ω Figure 20-39 26. Find the equivalent...
Problem 2 A 2 V power supply with intenal resistance of 10 2 is connected to a circuit as shown below 10 9 120 0 2V 120 0 out 1. What voltage appears across the power supply terminals (V)? 11 point 2. What voltage will be measured at Vau? 2 points 3. What voltage will be measured at Vat if the 120 2 resistors are replaced by 1 k2 resistors? [1 point]
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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