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Amperes represents a flow of charge (coulombs) in a circuit in a period of time (seconds). In order to have that flow, you have to have conductance, which is the inverse of resistance. Since the conductance of two circuits not connected to each other is zero (infinite resistance, neglecting leakage) there can be no current flow between disjoint circuits. A node is a junction between two elements in a circuit, such as the connection between a resistor and a light bulb. If you consider that the only circuit between those two elements contains that node, and that leakage is inconsequential in comparision to the conductance of the circuit, then you have to note that the current entering the node must be the same as the current leaving the node. In fact, this is Kirchoff's Current Law: The sum of the currents entering a node must equal the sum of the currents leaving a node. (Usually, we think of current entering to be one sign (+) and current leaving to be the other sign (-), so the sum of all currents relative to the node is zero.) Expand this thinking little by little to encompass the elements in the circuit. Again, there is no path for current to flow other than through the elements of the circuit. This means that the current in every part of the circuit is the same. Keep in mind that this applies only to series circuits. In a parallel circuit, current can branch out between two elements connected to a node supplied by another element. In that case, the current in each branch will be different, depending on the resistance and voltage of that path. Circuit analysis is simply the consolidation of a complex circuit into a simple circuit by repeated application of various conversions, such as Norton and Thevanin equivalents, with the ultimate goal of knowing the voltage, current, and resistance for each element.

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What is a amperage relay?

An amperage relay is an electrical device used to activate or deactivate a circuit based on the current flowing through it. It is designed to protect the circuit from overload or short-circuit conditions by opening or closing the circuit when the preset amperage level is exceeded.


What 2 Factors Determine How Much Amperage Will Flow?

The two main factors that determine how much amperage will flow in a circuit are the voltage of the source supplying the electricity and the resistance in the circuit. According to Ohm's Law, the amperage (current) in a circuit is equal to the voltage divided by the resistance (I = V/R).


Why does plugging too many appilances into the same circuit cause too much current to flow through the circuit what will happen as a result?

Each appliance has its own amperage. This can be shown by looking at the label of each appliance. A circuit is protected by a breaker which has a trip limit. By continually adding more amperage from different appliances, the circuit becomes overloaded. When the circuits limit is reached because of the additive effect of more appliances to the circuit the breaker will trip. This disconnects the appliance loads from the distribution panel supply and prevents over loading of the conductors of that circuit. Without removing some of the load amperage, the breaker will keep tripping when reset.


How many amps does a circuit with 110 volts and a resistance of 7ohms have?

The amperage in the circuit can be calculated using Ohm's Law: Amperage = Voltage / Resistance. Plugging in the values, we get Amperage = 110V / 7ohms = 15.71A. Therefore, the circuit would have approximately 15.71 amps of current flowing through it.


True or false if the voltage and resistance of a circuit stay constant the amperage can never change?

The equation for the three values in the question will give the definite answer.Amperage (I) is equal to the voltage (E) divided by the resistance (R).I= E / R So as you can see the answer is True.Example: 10 Volts and 50 Ohms in a circuit will have a current of .2 Amperes flowing through it. 10 / 50 = .2You can also rearrange the equation to find the other two:E= R * ER= E / I

Related Questions

Can different rating circuit breakers have the same short circuit characteristics?

Yes, different amperage rating circuit breakers can have the same short circuit characteristics.


What is a amperage relay?

An amperage relay is an electrical device used to activate or deactivate a circuit based on the current flowing through it. It is designed to protect the circuit from overload or short-circuit conditions by opening or closing the circuit when the preset amperage level is exceeded.


What is the range of amperage for the electrical circuit in question?

The range of amperage for the electrical circuit in question is between 15 to 20 amps.


Is amperage rating and running amperage the same thing?

Usually the current rating for a circuit is higher than the current usually taken. This leaves a little margin for safety.


Can two 2000 watt spotlights be plugged into the same 120 volt circuit?

power/voltage=Amperage. If the circuit is rated above 33.4 Amps it can.


What is the maximum amperage rating for a circuit breaker that can safely protect a 20 amp circuit?

The maximum amperage rating for a circuit breaker that can safely protect a 20 amp circuit is 20 amps.


What is the maximum amperage capacity of a 150 amp circuit breaker?

The maximum amperage capacity of a 150 amp circuit breaker is 150 amps.


What is the maximum amperage capacity of the circuit breaker 30 amp?

The maximum amperage capacity of a 30 amp circuit breaker is 30 amps.


What is the maximum amperage capacity of a 60 amp circuit breaker?

The maximum amperage capacity of a 60 amp circuit breaker is 60 amps.


What is the maximum amperage capacity of a 90 amp circuit breaker?

The maximum amperage capacity of a 90 amp circuit breaker is 90 amps.


What happens to amperage in series and parallel circuits?

In series, Amperage remains constant. In parallel, Amperages are added.


Open circuit prevents the movement of what?

amperage