Exercise 2: (3 pts) On a small auxiliary electric heater, we read: 220 V, 2,200 W...
Exercise 2: (3 pts) On a small auxiliary electric heater, we read: 220 V, 2,200 W and 50 Hz. a) What do these 3 values mean? b) What is the current drawn by this device and what is its resistance? c) What is the maximum current value?
Homework Answers
Add Answer to:
Exercise 2: (3 pts)
On a small auxiliary electric heater, we read: 220 V, 2,200 W...
1) An electric heater consumes electrical energy at a rate of P = 150 W when...
1) An electric heater consumes electrical energy at a rate of P = 150 W when connected to a battery with an emf of 120 V. (a) What is the current in the heater? A (b) If you wish to increase the power consumption to 300 W, by what factor should the heater resistance be changed? Rfinal Rinitial = (c) What is the maximum power that could be drawn if the circuit contained a circuit breaker that limited the current...
A 540 W electric heater is designed to operate at 120 V. What current does it...
A 540 W electric heater is designed to operate at 120 V. What current does it draw? (1 point) 04.50 A 03.22 A 26.7 A 2.25 A (1 point) 6. An electric heater with a resistance of 14.4 Ω is designed to operate at 120 V. What is its power? O1400 W 150 W O240 W 1000 W
A "2000 WW" electric heater is designed to operate on a 230VV supply. A "2000 W"...
A "2000 WW" electric heater is designed to operate on a 230VV
supply.
A "2000 W" electric heater is designed to operate on a 230V supply Part A What is its operating resistance? Express your answer with the appropriate units. μΑ ? R= Value Units Submit Request Answer Part B What current does it draw? Express your answer with the appropriate units. μΑ ? I = Value Units Submit Request Answer Part C If the voltage drops to 220 V,...
A "2100 W" electric heater is designed to operate on a 230V supply. What is its...
A "2100 W" electric heater is designed to operate on a 230V supply. What is its operating resistance? Express your answer with the appropriate units. ЦА ? R= Value Units Submit Request Answer Part B What current does it draw? Express your answer with the appropriate units. μΑ ? I= Value Units Submit Request Answer Part If the voltage drops to 220 V, what power does the heater take? (Assume that the resistance is constant. Actually, it will change because...
3. a) An electric water heater uses 5500 W (240 V) of electrical power. It has...
3. a) An electric water heater uses 5500 W (240 V) of electrical power. It has a capacity of 40 gallons (150 liters or 150 kg). If the initial temperature of the water in the water heater is 20° C, how long will it take to heat the water to a final temperature of 60° C at 100% efficiency? b) How long will it take to heat the water to a final temperature of 60°C at 80% efficiency? c)If electrical...
solve it now please A 220 V, 1000 rpm, separately excited dc motor is fed from...
solve it now
please
A 220 V, 1000 rpm, separately excited dc motor is fed from a three-phase controlled three-phase ac-dc converter through 220 V (line value-rms value), 50 Hz ac-source. It is required to apply 220 V (dc-value) across the motor terminals. What is the firing angle if the motor speed is 1000 rpm and takes 10 A ripple-free current. The armature resistance is 1 ohm. The field circuit with 198 ohms is fed from a fully controlled single-phase...
Exercise 10 Consider a 2-m-high electric hot water heater that has a diameter of 40 cm...
Exercise 10 Consider a 2-m-high electric hot water heater that has a diameter of 40 cm and maintains the hot water at 55°C. The tank is located in a small room whose average temperature is 27°C, and the heat transfer coefficients on the inner and outer surfaces of the heater are 50 and 12 W/m2.°C, respectively. The tank is placed in another 46-cm-diameter sheet metal tank of negligible thickness, and the space between the two tanks is filled with foam...
Open Book Exam A 220 V, 1000 V dc-sourc rpm, separately dc motor is fed from a dc-dc converter th...
Open Book Exam A 220 V, 1000 V dc-sourc rpm, separately dc motor is fed from a dc-dc converter through 550 e with duty cycle 40 %. The motor speed is 1000 rpm when takes ripple free and armature resistance is 1 Ω. The motor constant is 6/π V/A-rad/s. The field circuit with 198 Ω is fed from a controlled single-phase rectifier and set to the maximum possible value. The ac source for field circuit is 220 V, 50 Hz....
4. A 3-phase full-wave converter drive is feeding power to a 220 V, 20 A, 1000...
4. A 3-phase full-wave converter drive is feeding power to a 220 V, 20 A, 1000 rpm separately excited dc motor. The ac input to the converters are 415 V, 3-phase, 50 Hz, Y-connected supply system. The field is also controlled by a 3-phase full converter and is set to the maximum possible value. The armature resistance is 0.5 Q and the field resistance is 250 12. The motor voltage constant is 1.2 V/A rad/s. Assume continuous conduction and ripple...
1. [-/10 Points) DETAILS SERCP11 17.2.P.001. A current of 87.4 mA exists in a metal wire....
1. [-/10 Points) DETAILS SERCP11 17.2.P.001. A current of 87.4 mA exists in a metal wire. (a) How many electrons flow past a given cross section of the wire in 10.5 min? electrons (b) In what direction do the electrons travel with respect to the current? same direction opposite direction The magnitude is zero. Need Help? Read it Watch It 2. [-/10 Points) DETAILS SERCP11 17.4.P.010. An electric heater carries a current of 10.5 A when operating at a voltage...
A 540 W electric heater is designed to operate at 120 V. What current does it draw? (1 point) 04.50 A 03.22 A 26.7 A 2.25 A (1 point) 6. An electric heater with a resistance of 14.4 Ω is designed to operate at 120 V. What is its power? O1400 W 150 W O240 W 1000 W
A "2000 WW" electric heater is designed to operate on a 230VV
supply.
A "2000 W" electric heater is designed to operate on a 230V supply Part A What is its operating resistance? Express your answer with the appropriate units. μΑ ? R= Value Units Submit Request Answer Part B What current does it draw? Express your answer with the appropriate units. μΑ ? I = Value Units Submit Request Answer Part C If the voltage drops to 220 V,...
A "2100 W" electric heater is designed to operate on a 230V supply. What is its operating resistance? Express your answer with the appropriate units. ЦА ? R= Value Units Submit Request Answer Part B What current does it draw? Express your answer with the appropriate units. μΑ ? I= Value Units Submit Request Answer Part If the voltage drops to 220 V, what power does the heater take? (Assume that the resistance is constant. Actually, it will change because...
3. a) An electric water heater uses 5500 W (240 V) of electrical power. It has a capacity of 40 gallons (150 liters or 150 kg). If the initial temperature of the water in the water heater is 20° C, how long will it take to heat the water to a final temperature of 60° C at 100% efficiency? b) How long will it take to heat the water to a final temperature of 60°C at 80% efficiency? c)If electrical...
solve it now
please
A 220 V, 1000 rpm, separately excited dc motor is fed from a three-phase controlled three-phase ac-dc converter through 220 V (line value-rms value), 50 Hz ac-source. It is required to apply 220 V (dc-value) across the motor terminals. What is the firing angle if the motor speed is 1000 rpm and takes 10 A ripple-free current. The armature resistance is 1 ohm. The field circuit with 198 ohms is fed from a fully controlled single-phase...
Exercise 10 Consider a 2-m-high electric hot water heater that has a diameter of 40 cm and maintains the hot water at 55°C. The tank is located in a small room whose average temperature is 27°C, and the heat transfer coefficients on the inner and outer surfaces of the heater are 50 and 12 W/m2.°C, respectively. The tank is placed in another 46-cm-diameter sheet metal tank of negligible thickness, and the space between the two tanks is filled with foam...
Open Book Exam A 220 V, 1000 V dc-sourc rpm, separately dc motor is fed from a dc-dc converter through 550 e with duty cycle 40 %. The motor speed is 1000 rpm when takes ripple free and armature resistance is 1 Ω. The motor constant is 6/π V/A-rad/s. The field circuit with 198 Ω is fed from a controlled single-phase rectifier and set to the maximum possible value. The ac source for field circuit is 220 V, 50 Hz....
4. A 3-phase full-wave converter drive is feeding power to a 220 V, 20 A, 1000 rpm separately excited dc motor. The ac input to the converters are 415 V, 3-phase, 50 Hz, Y-connected supply system. The field is also controlled by a 3-phase full converter and is set to the maximum possible value. The armature resistance is 0.5 Q and the field resistance is 250 12. The motor voltage constant is 1.2 V/A rad/s. Assume continuous conduction and ripple...
1. [-/10 Points) DETAILS SERCP11 17.2.P.001. A current of 87.4 mA exists in a metal wire. (a) How many electrons flow past a given cross section of the wire in 10.5 min? electrons (b) In what direction do the electrons travel with respect to the current? same direction opposite direction The magnitude is zero. Need Help? Read it Watch It 2. [-/10 Points) DETAILS SERCP11 17.4.P.010. An electric heater carries a current of 10.5 A when operating at a voltage...
Most questions answered within 3 hours.
-
. A 2.50 M stock solution was used to prepare a dilute NaOH
solution with a...
asked 33 minutes ago -
Write a program that reads in a text file, infile.txt, and
prints out all the lines...
asked 2 hours ago -
Which of the following orbits have a total of zero energy (based
on the common convention)?...
asked 2 hours ago -
Find the expected count and the contribution to the chi-square
statistic for the (Group 1, No)...
asked 4 hours ago -
Suppose you are purchasing a meal and with every meal a you
receive one of 10...
asked 4 hours ago -
A 75.0 kg 0erson is riding in a car moving at 20.0 m/s when the
car...
asked 4 hours ago -
What does Δp = QR mean in words?
Pushing a viscous fluid through a pipe requires...
asked 4 hours ago -
We know that system.out.println (“object number” + n ); is
legal.String name; int n; name =...
asked 4 hours ago -
Come up with a real-life problem (open-ended) and solve it by
designing and writing a Java...
asked 4 hours ago -
Power Music owns five music stores, where it sells music,
instruments, and supplies. In addition, it...
asked 4 hours ago -
True or false and
why:
Given the following sequence of numbers to be
inserted {4,5,6,1,2,3,8,7}, the...
asked 4 hours ago -
Code using Java
What is an interface? Complete the following code:
interface IExample{
public void print();...
asked 5 hours ago