Solution:
Given:
Power (P) = 1306 W
Vrms = 120 V
Since : P = Vrms Irms
Therefore : Irms = P / Vrms = (1306 W) / (120 V) = 10.88 A
pter 21 6 Required information A hair dryer has a power rating of 1306 W at...
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?
The heating element in a hair dryer is essentially a wire whose resistance causes it to become red-hot when a current exisits in it. Such wires are usually made of nichrome (a nickel-chromium alloy), whose resistivity is p=1.0*10^-6 ohm*m. (a) Suppose one such wire has a diameter of 0.30 mm and a resistance of 9.0 ohm. What is the length of the wire? (Note that wires like this in a hair dyrer tend to be coiled around to save space)...
What is the resistance of a 1700 W (120 V) hair dryer? What is the current in the hair dryer when it is used?
Question 24 1 pts A hair dryer advertises a power of 1600 W when used on a 120 Vac line. What is the current that the hair dryer uses (in A)?
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.
A 120-V hair dryer has two settings: 850 W and 1250 W. A) at which setting do you expect the resistance to be higher?After making a guess,determine the resistance at B)the lower setting;and C) the higher setting Please show work.
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
When operated on a household 110.0-V line, typical hair dryers draw about 1550 W of power. We can model the current as a long straight wire in the handle. During use, the current is about 2.25 cm from the user\'s hand. What is the current in the dryer? What is the resistance of the dryer? What magnetic field does the dryer produce at the user\'s hand?
Question 1 Not yet answered Marked out of 1.00 p Flag question A 110-V hair dryer is rated at 1200 W. What current will it draw when operating from a 110-V electrical outlet? Select one: a. 90 mA | b. 11 A O c.5.0 A d. 1.0 A Question 2 Not yet answered Marked out of 1.00 p Flag question A light bulb is connected to a 110-V source. What is the resistance of this bulb if it is a...
The power rating of a light bulb (such as a 100-W bulb) is the power it dissipates when connected across a 120-V potential difference (a) What is the resistance of a 100-W bulb? (b) What is the resistance of a 120-W bulb? (c) How much current does each bulb draw in normal use? 1100-w = 1120-w-