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How much current flows through an air conditioner that uses 220 V electricity and has a resistance of 7.5 ohms?
Wiki User
∙ 11y ago
29.33333.... amperes
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Wiki User
∙ 11y ago
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How does electricity tranform to heat in an electricity stove?
Electricity is converted to heat through the resitive coils or burners. As electricity flows through the resistance in the coils it increases the current of the electicity being used to force the electrons harder through the coil and this is what actually creates the heat, as the current increases it causes the electrons to vibrate faster creating heat through friction. Heat is another term for current/amps and wattage. The formula for this is I=E/R or I(current in amps)=E(elctricity in voltage)divided by R(resistance in ohms) So the more resistance you put into any circuit you will get proportionally more current(in order to push the electrons through the resistance). Hope i didnt get to technical and this answers your question ) The formula for this is V = I * R or (Voltage Drop Across Resistance) = Current (Amps) * Resistance (Ohms). When you increase the resistance in the circuit, if you keep the voltage constant, you DECREASE the current.
What property causes wires and coils to become hot when electricity flows through them?
Yes, so electricity simply flow through them.Most Wires and Coils have resistance. This resistance opposes the flow of Current. This opposition creates Heat.
What is the relationship between heat and current?
Heat is caused by resistance against electricity, or flow of current which is part of electricity. Electricity was made by physical power converted into electricity. The heat is caused by resisting the flow of electrical current.
Definition of insulators of electricity?
That refers to a material that doesn't let an electric current through easily - a material with a high resistance,
What are the three electrical guantities?
The three electrical quantities are current voltage and resistance. Current is measured in amperes (A) and is the rate at which electricity flows through a conductor. Voltage is measured in volts (V) and is the electrical force pushing the current through the conductor. Resistance is measured in ohms () and is the opposition to the flow of current. Current - measured in amperes (A) Voltage - measured in volts (V) Resistance - measured in ohms ()
Why is electricity related to voltage?
Because voltage is the power that makes electricity to circulate in a wire. Depending on the diameter, the lenght and material of the conductor (wire) the current, (the amount of electrons) flowing in the wire, the resistance will be lower or higher. Conclusively, the voltage is not the electricity itself, but it is like a pump that impulses the water through a pipe. Electricity is the current whose unit of measurement is the Ampere. So you have the voltage, resistance, and current in a electrical circuit on a direct current system.
What is a material which allows electricity to flow through it but with but with resistance?
A "resistance" or "resistor".
Does electricity travel in the shortest or easiest path?
Electricity travels in the path of least resistance.
What is meant by resistance of a current?
The resistance of a current is a measure of how difficult it is to push the electrons along.AnswerThere is no such thing as the 'resistance of a current'. Resistance is a characteristic of the material through which a current flows, not of the current itself.
Why should we not touch electric appliances with your wet hands?
It's the electric current that hurts you, not the voltage. But the current is determined by:Current = Voltage / Resistance.Normally your skin has very high resistance; since resistance is in the denominator, this means low current.But water will lower your skin's resistance, thereby raising the amount of current flowing through your body.
What is meant by the resistance of an electrical component?
Think of it like this: Friction causes you difficulty in pulling heavy objects on a carpet. This frictional force is similar to electrical resistance. It is one of two ways to define how easily electricity will travel through an electrical element.
Write short note on superconductivity?
A material which has no resistance to electricity. When passing current through a superconductor, there is no loss of electrical power due to these materials.
