What is the resistance of a 850 W 120 V hair dryer?
What is the resistance of a 850 W 120 V hair dryer?
Therefore, the setting with 850 watts has greater resistance. The resistance for the lower power setting is: Rearrange for the resistance and calculate the resistance as follows: V2 (120v) 850 W :: 16.94 Ω The resistance is 16.94 Ω.
What is the resistance of a hair dryer?
What is the resistance of the hair dryer? R = (Voltage)/(Current)= 120 V/13 A = 9.2 W. If two resistances are linked together with a single wire as in the diagram, the current through each resistor is the same. The potential drop across each resistor is equal to the current times the resistance of that resistor.
What is the resistance of a 1500w 120v hair dryer?
What is its resistance? A. 9.6 Ω
How much resistance in Ohms is there in a 1500 w hair dryer?
= 9.6 ohs.
At Which setting do you expect the resistance to be higher?
At which setting do you expect the resistance to be higher? a. The 950 W setting has the higher resistance.
How much current does a 1200 W hair dryer use if it is plugged into a 120 V outlet?
Yes. from the expression watts = amperes X volts, we see that the current = 1200 W/120 V = 10 A, so the hair dryer will operate when connected to the circuit.
What is the resistance of a hair dryer if it is 120 V with a current of 15 amperes?
What is the resistance of a hairdryer if it is 120 volts with a current of 15 amperes? 8 ohms.
Is a hair dryer an example of resistance in a circuit?
Hair dryers use the heating element ( a simple wire with some resistance ) to transform electric energy into heat. The current makes the electric motor spin, which turns the fan. 4. The fan is made of plastic and the airflow generated by it is directed down the barrel of the hairdryer, through the heating resistance.
What is the resistance of a 100 watt 120 volt bulb?
For example, a 100 watt light bulb operating on 120 volts AC will have 144 ohms of resistance and will draw 0.833 Amps.
What will be the resistance Rstretched of the wire if it is stretched to twice its original length?
L is the length of the wire. If the wire is stretched o twice its original length then new length of the wire L₂ = 2L. Note that an increase in the length of wire will affect its area but its volume and density will not change. Hence, the resistance of the stretched wire will be four times that of the original wire.
Which of these wires would have the most resistance to a current?
Very short answer: long wire. Short answer: Electrical resistance of a conductor(substances which allow passage of electric current) is directly proportional to the conductor’s length & inversely proportional to the cross-section area.