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How much power is consumed by a heating element using a current of 10 amperes at 120 volts?
Wiki User
∙ 15y ago
1200 Watts using Ohms Law however this may vary due to a couple of other factors. For what you would likely want to know, this is close enough. Study Ohm's Law to understand the relationship between power, current, voltage, and resistance.
A good place to start is here:
http://www.the12volt.com/ohm/page2.asp
Wiki User
∙ 15y ago
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Why does the chord of an electric heater not glow while the heating element does?
The element is made of special high resistance wire so the power is dissipated in the element rather than the low resistance cord.Power(watts) = Resistance (ohms) X {Current(amperes)}squared
What would cause a circuit breaker heating element to trip off?
There are two conditions that would cause a breaker to trip off. One is an overload of the circuit and the other is a short circuit on the circuit. The heating element within the breaker is what monitors for circuit overloads.
Does a wire in an electrical cord of an electrical kettle have a higher or lower resistance than the heating element inside the kettle?
The heating element in the electric kettle will be primarily pure resistive. Power in that case is calculated P = E*I = 250V*I = 3000 W So the current is I = 3000 W/250 V = 12 Amps If there is anything else (lights, radio, PC, etc.) on the circuit that may be taking some current you are very likely to go over 13 A frequently. I don't know how accurate you can expect a fuse's blow point to be. Perhaps +/- 10%? Doesn't seem very trouble free. Even if the circuit is dedicated to the kettle, consider this idea. We don't know exactly what conditions the manufacturer was considering when specifying the wattage. Probably operating conditions, when the element was hot. Then Ohm's Law tells us that the resistance R is R = E/I = 250 V/12 Amps = 20.8 Ohms But the element's resistance would be lower at first when it is cold. My calculations indicate that if the element is made of nichrome wire, and if the temperature change is 200 degrees C, the hot resistance of 21 Ohms is probably about 1.7 Ohms higher than when at room temperature. If that is true, when you first turn it on, Ohm's Law says that the initial current should be 12.95 Amps. Regardless of this analysis, remember that the fuse requirement is based on the size of the wires in the wall. You don't want those wires to get hot. Don't put in a bigger fuse than what was there originally.
How do you write the sentence Our school needs a heating system One that is more fuel-efficient than the current system properly?
Our school is in need of a heating system that is more fuel-efficient than the current system. or Our school needs a heating system more fuel-efficient than the current one.
Are resistor heating affected by line frequency?
No. The heating effect is the product of the square of the current and resistance, where the current is a root-mean-square value.A.C. current is always expressed as a root-mean-square (r.m.s.) value, which is equivalent to a d.c. current which produces exactly the same heating effect. Root-mean-square values are affected by the shape of a waveform, but not by its frequency.
What is the resistance of the heating element of an electric iron it the ampere draw is 8 amperes when 115 volts are applied?
Using Ohm's Law (E = I R) Voltage = Current x Resistance or switch around to get R = E / I: 115 volts / 8 Amperes = 14.375 Ohms The above is correct for DC current but is close enough to be used for AC current.
Why does the cord of an electric heater not glow while the heating element does?
The heating element of an electric heater is a "resistor", the cord which conducts the electricity is not. The resistance of the element of an electric heater is very high. As current flows through the heating element, it becomes red hot and glows. On the other hand, the resistance of the cord is low. It does not become red hot when current flows through it.
How does a heating pad work?
Heating pads contain heating elements that convert electricity to heat by passing current through a conductor (usually a wire). This process is variously referred to as resistive heating, ohmic heating, or Joule heating. The amount of heat generated is proportional to the square of the applied current multiplied by the resistance of the conductor. If SI units are employed (amperes for current and ohms for resistance) the unit of heat energyis called a joule.
Does the wire in the electrical cord of an electric have a higher or lower resistance than the Heating element inside the kettle?
The wire in the cord has much lower resistance than the heating element. The heating element is a resistive or resistance heating element. Resistance in the quality of a substance or material that causes it to limit current flow, and it get heated up in the process. The heating element has all but the smallest fraction of the resistance in the circuit, so the heat, that thermal energy that get the water hot, is generated by the resistance of the heating element.
Does the wire in the electrical cord of an electric kettle have a higher or lower resistance than the heating element inside the kettle?
The wire in the cord has much lower resistance than the heating element. The heating element is a resistive or resistance heating element. Resistance in the quality of a substance or material that causes it to limit current flow, and it get heated up in the process. The heating element has all but the smallest fraction of the resistance in the circuit, so the heat, that thermal energy that get the water hot, is generated by the resistance of the heating element.
How many amps does a 1500 W heater pull 120 V?
A 1500 Watt heating element about 1500/110 or 13.64 Amperes from a 110V service. It is assumed the heating element is made from a resistive wire.
Why does the chord of an electric heater not glow while the heating element does?
The element is made of special high resistance wire so the power is dissipated in the element rather than the low resistance cord.Power(watts) = Resistance (ohms) X {Current(amperes)}squared
Which heating element is used in a heater?
Heating element is the main part of the ironbox which gets heated as current passes through it. We have to use the material for heating element with features such as: 1) high melting point 2) high specific resistance 3) not easily oxidised. (most important point) Hence the alloy NICHROME ( nickel and chromium) is used for heating element because it is not oxidised even at high temperatures.
Is the heating element on a stove a chemical reaction?
No. It is a physical process cause be passing an electric current through a wire.
How glue gun heating element works?
An electric current heats a metal tube that the glue is forced through.
Can an ac element be run on DC?
DC voltage can be used to run almost any device utilizing an electric heating element, including resistive baseboard and electric water heaters. In these applications, electrical current flowing in a heating element produces heat due to resistance.
When checking an electric heating element you read voltage but no amperage What can you determine about the heating element?
the element has a open in it !
