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What is the voltage drop across a 100 W resistor when the electric current flowing through it is measured at 250 mA?
Who can tell? The power rating of a resistor simply tells us the maximum power that resistor is capable of handling; it doesn't tell us anything about the actual power being produced for any given current. So, to find out the voltage drop across that resistor, you will need to find out its resistance, and multiply this value by the current you specify.
What else can I help you with?
What measures the flowing in a circuit?
The flow in a circuit is called the electric current and it is measured by voltages. The number of volts that are present in the charge will determine the strength of the electric current.
Resistors A and B are connected in parallel If resistor B has twice the resistance of A what is the current taken by resistor B?
half of the current flowing thru resistor 1.... V=IR.
How is current measured with an in line type meter?
An in-line type meter measures current by being directly integrated into the electrical circuit. It typically utilizes a shunt resistor, where a small voltage drop across the resistor, proportional to the current flowing through it, is measured. The meter then converts this voltage reading into a current value, often displayed digitally. This setup allows for accurate real-time monitoring of current without interrupting the circuit.
Do you need to apply a load to see a voltage drop across a resistor?
You'll see a voltage drop across a resistor if current is flowing through it. It only has to be a part of a complete circuit, i.e. one in which current is flowing.
What moves through a circuit and is measured by current?
Electric charge moves through a circuit and is measured by current. In most circuits, this charge is carried by electrons flowing through conductive materials like wires. The flow of electric charge is quantified in amperes (A), which indicates the rate at which charge passes a given point in the circuit.
Is resistor measured in amps?
No, resistors are measured in ohms, not amps. Ohms represent the resistance offered by the resistor to the flow of current, whereas amps (amperes) represent the measure of current flowing through a circuit.
Why does a resistor heat up when an electric current flows through it?
Current moving through a resistor causes it to heat up because of the flowing electrons bumping into the atoms in the resistor.
What is Electric charge flowing in a steady stream called?
Electric charge flowing in a steady stream is called electric current. It is the rate of flow of electric charge and is measured in Amperes (A).
What is An electric current is measured in units?
Electric current is typically measured in amperes (A), which represent the rate at which electric charge is flowing through a circuit. Other common units for measuring electric current include milliamperes (mA) and microamperes (µA).
The voltage drop measured across a 2K ohm resistor is 24 mV How much current is flowing through it?
0.012 mA
How is the strength of electric current measured with?
The strength of an electric current is measured in amperes (A) using an ammeter. An ammeter is a device that is connected in series in a circuit to measure the flow of current. The higher the current flowing through a circuit, the higher the amperage reading on the ammeter.
How to find the potential difference across a resistor in an electric circuit?
To find the potential difference across a resistor in an electric circuit, you can use Ohm's Law, which states that voltage (V) equals current (I) multiplied by resistance (R). So, you can calculate the potential difference by multiplying the current flowing through the resistor by the resistance value of the resistor.
What measures the flowing in a circuit?
The flow in a circuit is called the electric current and it is measured by voltages. The number of volts that are present in the charge will determine the strength of the electric current.
What is the definition for current intensity?
Current intensity refers to the amount of electric current flowing through a conductor in a given time, measured in amperes (A). It is a measure of the rate at which electric charge flows in a circuit.
Consider two identical resistors wired in series one behind the other If there is an electric current through the combination the current in the second resistor is?
Two resistors wired in series (no mater if they have the same resistor value or not) will always have the same amount of current flowing through them. Therefore, the current flowing through the second resistor will be equal to the current flowing through the first one. The current through every component in a series circuit is the same. The voltage across every component in a parallel circuit is the same.
Number of electrons flowing pass one point?
The passing charges is called, "Current", and the rate of those charges is measured in "Amperes", capitalized because the word is taken from a person's name. The common electrical units are: Electromotive Force, or EMF. Measured in Volts. Current. Measured in Amperes. Resistance. Measured in ohms.
An electric dc circuit is attached to a 12 volt battery and has a 3ohm resistor in it What is the current flowing through the circuit?
The current depends on the total effecvtive resistance of everything connectedacross the battery.If the resistor is the only component there, then the current is E/R = 12/3 = 4 amperes.
