t its highest temperature, a space heater has a resistance of 23.5 Ω when it is plugged into a wall outlet that supplies a peak voltage of 162.6 V sinusoidally at 60 Hz . What is the average power output
T its highest temperature, a space heater has a resistance of 23.5 Ω when it is plugged into a wa...
At its highest temperature, a space heater has a resistance of 23.5 Ω when it is plugged into a wall outlet that supplies a peak voltage of 162.6 V sinusoidally at 60 Hz . What is the average power output ?⎯⎯⎯⎯ of the space heater?
At its highest temperature, a space heater has a resistance of 21.5 Ω when it is plugged into a wall outlet that supplies a peak voltage of 169.7 V sinusoidally at 60 Hz . What is the average power output ?⎯⎯⎯⎯ of the space heater?
A 430-W space heater is designed for operation in Germany, where household electric outlets supply 230 V (rms) service. What is the power output of the heater when plugged into a 120-V (rms) outlet in a house in the United States? Ignore the effects of temperature on the heater's resistance.
The heating element in an iron has a resistance of 24 Ω. The iron is plugged into a 120 V outlet. What is the power dissipated by the iron?
The tungsten filament of an incandescent lamp has a resistance of 200 Ohms at room temperature. A) What would the resistance be at an operating temperature of 1600 C? B) Assuming it is plugged into a 120-V outlet, what is its power output when just starting up? C) By how much does its power output change from the room temperature value when it is at its operating temperature?
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 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 LR circuit with a battery has an inductor with L = 37 mH & τ = 6 ms. It is known that when t = 12 ms, I = 0.11 A. Determine the resistance of the resistor and the voltage of the battery. The armature of a 60 Hz ac generator rotates in a 0.19 T B-field. If the area of the coils is 0.03 m2, how many loops must the coil contain if the peak output is...
Q1: What is the effective resistance (in Ω) of a car's starter motor when 142 A flows through it as the car battery applies 10.7 V to the motor? Q2: The cord from an appliance is too short to reach the wall outlet in your room. You have two extension cords to choose from. (a) Find the voltage drop in the first extension cord having a 0.0440 Ω resistance and through which 7.60 A is flowing. V (b) The second...
Name: 23. A 3-phase, 5000 hp, 6000 v,60 Hz, 12-pole wound-rotor induction motor has the 1, resistance between stator terminals-o12 Ω 2. resistance between rotor slip-rings-0.0073 Ω 3. windage and friction losses-51 kW following characteristics 4. iron losses in the stator-39 kW 5. locked rotor current at 6000 V-1800 A 6. active power to the stator with rotor locked 2207 kw Calculate under full-load voltage locked-rotor conditions a. Reactive power absorbed by the motor b. FR losses in the stator...