A 65 W electric blanket runs at 24 V .
What is the resistance of the wire in the blanket?
How much current does the wire carry?
here
R = V^2 / P
R = 24 * 24 / 65
R = 8.86 ohm
then
I = P / V
I = 65 / 24
I = 2.7 amp
A 65 W electric blanket runs at 24 V . What is the resistance of the...
A 90 W electric blanket runs at 24 V . Part A What is the resistance of the wire in the blanket? Express your answer to two significant figures and include the appropriate units. Part B How much current does the wire carry? Express your answer to two significant figures and include the appropriate units.
You want to design a portable electric blanket that runs on a 1.5 V battery. If you use copper wire with a 0.50 mm diameter as the heating element, how long should the wire be if you want to generate 15 W of heating power?
You want to design a portable electric blanket that runs on a 1.5-V battery. If you use a 0.50mm diameter copper wire as the heating element, how long should the wire be if you want to generate 22 W of heating power? The resistivity of copper is 1.68×10^−8Ω⋅m
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 120V generator powers an electric circuit with 86.0 Ω of resistance . a. How much electric current flows in this circuit? A b. What is this circuit's electric power? W c. The generator runs for one hour. Calculate how much energy, in J, the generator will use. J
What is the resistance of a 6.4 m length of nichrome wire that has a radius of 0.321 mm? How much current does it carry when connected to a 120 V source? R = _______ Ω I = __________ A
1. A lamp (R = 147 W), an electric heater (R = 24 W), and a fan (R = 49 W) are connected in parallel to an extension cord plugged into a 117 V outlet. (a) What total current is supplied to the circuit? (b) What is the voltage across the fan? (c) What is the current in the lamp? (d) What power is expended in the heater?
A lamp (R = 147 W), an electric heater (R = 24 W), and a fan (R = 49 W) are connected in parallel to an extention cord plugged into a 117 V outlet. a) what total current is supplied to the circuit? b) what is the voltage across the fan? c) what is the current in the lamp? d) what power is expended in the heater?
1. A lamp (R = 147 W), an electric heater (R = 24 w), and a fan (R = 49 W) are connected in parallel to an extension cord plugged into a 117 V outlet. (a) What total current is supplied to the circuit? (b) What is the voltage across the fan? (c) What is the current in the lamp? (d) What power is expended in the heater?
1. A lamp (R = 147 W), an electric heater (R = 24 W), and a fan (R = 49 W) are connected in parallel to an extension cord plugged into a 117 V outlet. (a) What total current is supplied to the circuit? (b) What is the voltage across the fan? (c) What is the current in the lamp? (d) What power is expended in the heater?