A 120-V hair dryer has two settings: 850 W and 1250 W. A) at which setting...
A 120-V hair dryer has two settings: 850 W and 1550 W . B) Determine the resistance at 850 W setting. C) Determine the resistance at 1550 W setting.
You have a hair dryer with two settings, 850 W and 1250 W in Europe, where electricity is delivered to homes at 240 V. a. Find the resistance at both settings. b. What will be the new power settings in the US, where electricity is delivered to homes at 120 V. c. To keep the power rating of the device the same in the US, what should the new resistance be?
A 1500 W electric heater is plugged into the outlet of a 120 V circuit that has a 20 A circuit breaker. You plug an electric hair dryer into the same outlet. The hair dryer has power settings of 600 W, 900 W , 1200 W, and 1500 W. You start with the hair dryer on the 600 W setting and increase the power setting until the circuit breaker trips. Under what setting does the circuit breaker trip. Please, no...
What is the resistance of a 1700 W (120 V) hair dryer? What is the current in the hair dryer when it is used?
3. A 1500 w hair dryer operates on a household outlet of 120 V. What is its resistance? (1 point) 09.6 Ω 012.5 Ω O 10.40 08.1 Ω potnt) 4 A resistor has a 15.0 V potential difference across its ends. It develops thermal energy at a rate of 327 W. What is the current in the resistor? O68.8 A 014.5 A 045.9 A 021.8 A
Two light bulbs both operate on 120 V. Which draws less current a 60-W lightbulb or a 75-W bulb? Which one has the lower resistance?
(Speed ), W highest speed setting across the 12.o V battery. Show the work that tells you that the motor's resistance equals 667 m2 (milliohms). Switched 12 i Blower Motor 80 m o) (6 points] Complete this table of total resistance (motor plus resistors) in the circuit, in milliohms, and current through the motor, in amperes, for each of the speed settings. 50 mD 1.960 Speed settingTotal Resistance, m2Motor Current,A 2 Speed 1 Speed 2 Speed 3 Speed 4 667...
In guinea pigs, white coat (w) is recessive to black coat (W) and wavy hair (v) is recessive to straight hair (V). A breeder crosses a guinea pig that is homozygous for white coat and wavy hair with a guinea pig that is black with straight hair. The F1 are then crossed with guinea pigs having white coats and wavy hair in a series of testcrosses. The following progeny are produced from these testcrosses: (Hint: To test for independent assortment,...
6. You and a friend rent a room in an old house and find that if both of you are using your blow dryers, the 20 amp fuse for that circuit occasionally blows. Each blow dryer has a high and a low power setting, which has the effect of fixing the electrical resistance. The wire from the fuse box is as old as the house, and has an additional resistance which newer wiring would minimize. W 120V 120V Powerline R2...
PROBLEM 1 Consider the typical HO setting: 2 countries, the United States and Canada, produce two goods, maiz (corn) and cloth, with two factors, land and labor. Both countries share the same tastes and the same technology. Maiz production is land intensive, and therefore cloth production is labor intensive. Furthermore, resource endowments are as follows: in the US there are 100 units of labor and 100 of land, in Canada there are 60 units of labor and 90 of land. Which...