what is the relationship between the amount of electric current passed and the heat produced?
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according to joules law of heating effect the amount of electric current passing through a conductor is directly proportional to the amount of heat generated. if the electric current passing through the conductor is more then the amount of heat generated will also be more.
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The current flowing through a resistor at a constant temperature is directly proportional to the potential difference across it. This is called Ohm's law. When resistors are connected in series, the total resistance of two or more resistors is the sum of their individual resistance.
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The relationship between current and voltage is direct - as voltage increases, current increases. The relationship between current and resistance is inverse. As resistance increases, current decreases (for a fixed voltage). The light bulb filament changes temperature and therefore changes resistance.
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The heat Q transferred to cause a temperature change depends on the magnitude of the temperature change, the mass of the system, and the substance and phase involved. (a) The amount of heat transferred is directly proportional to the temperature change.
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The amount of heat lost by the warmer object is equal to the amount of heat gained by the cooler object. The warmer object's temperature will drop and the cooler object's temperature will rise until they reach the same temperature.
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An electric heater is an electrical device that converts an electric current into heat. The heating element inside every electric heater is an electrical resistor, and works on the principle of Joule heating: an electric current passing through a resistor will convert that electrical energy into heat energy.
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Current is directly proportional to electric potential difference and inversely proportional to resistance.
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A heating curve has been plotted for a solid object as shown in the figure. If the mass of the object is 200 g, then latent heat of vaporization for the material of the object, is [power supplied to the object is constant and equal to 1 kW] A .
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The difference between heat flow and heat flux is that heat flux it the heat flow per area unit, as described in the formula below. Heat is the flow of energy due to difference of temperature. The area is perpendicular to the heat flow direction, regardless of the heat trnsfer mechanism.
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Ohm's law defines the relationship between the voltage, current, and resistance in an electric circuit: i = v/r. The current is directly proportional to the voltage and inversely proportional to the resistance.
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Ohm's law states that the electrical current (I) flowing in an circuit is proportional to the voltage (V) and inversely proportional to the resistance (R).
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Which best describes the relationship between heat, internal energy, and thermal energy? Thermal energy is heat that flows, and heat is the part of internal energy that can be transferred. Its particles have less kinetic energy.
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Thermal energy refers to the energy contained within a system that is responsible for its temperature. Heat is the flow of thermal energy. A whole branch of physics, thermodynamics, deals with how heat is transferred between different systems and how work is done in the process (see the 1ˢᵗ law of thermodynamics).
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Heat flux is the amount of heat transferred per unit area per unit time to or from a surface. ... the amount of heat transfer per unit time and the area to or from which the heat transfer occurs. The derived SI unit of heat rate is joule per second or watt. Heat flux density describes the heat rate per unit area.
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Hence the heating effect produced by an electric current, I through a conductor of resistance, R for a time, t is given by H = I2Rt. This equation is called the Joule's equation of electrical heating.
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q is the amount of heat transferred to a system whereas is used to describe the change in enthalpy. Enthalpy is the total potential energy of a system, which is associated with the heat transferred to/from a system (q).
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Electric current is the charge that flows through the circuit. Electric circuit is the path of conduction wires through which current flows.