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if you want to find the current (in amperes) through the resistor then connect a ammeter in series with the resistor.

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Q: How do you find amperes when using a resistor?
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If the current running through a wire is 1.2 amperes and it passed through a resistor of 7.5 Ohms what is the voltage of the system?

9V by using ohms law


An electric DC circuit is attached to a 12 volt battery and has a 3 ohm resistor in it find the current flowing through the circuit?

The current flowing through the circuit can be calculated using Ohm's Law: I = V/R, where V is the voltage (12V) and R is the resistance (3 ohms). Plugging in the values, I = 12V/3 ohms = 4 amperes. Therefore, the current flowing through the circuit is 4 amperes.


What value resistor will you need?

To determine the value of the resistor needed, you would typically need to know the voltage across the resistor and the desired current flowing through it. The value can be calculated using Ohm's Law: resistance (in ohms) = voltage (in volts) / current (in amperes).


When a manual refers to a particular resistor as 2.2 megohm resistor does this means the resistor can safely carry a current of 2200000 amperes?

No. It means it has a resistance of 2,200,000 Ohms. Plus or minus the tolerance.


How can you define power dissipation in a resistor in series or parallel circuit?

Power dissipation in a resistor, or any other type of load, for that matter, is measured in watts and calculated as volts times amperes. It does not matter if the resistor is in a series or a parallel circuit, so long as the volts and amperes in the calculation is for that one resistor. Obviously, volts and amperes is distributed amongst the components of a circuit, and series vs parallel can have a significant affect on that distribution, so you will need to calculate or measure them on a case by case basis.


What is the power dissipated by a resistor that has 5 amps flowing through it with 120 volts applied?

The power in a resistor (in watts) is simply the product of the current (in amperes) times the voltage (in volts).The power in a resistor (in watts) is simply the product of the current (in amperes) times the voltage (in volts).The power in a resistor (in watts) is simply the product of the current (in amperes) times the voltage (in volts).The power in a resistor (in watts) is simply the product of the current (in amperes) times the voltage (in volts).


What is the current in a 12-volt circuit with a 6-ohm resistor connected series?

2 A (amperes)


A 9.0 volt battery is connected to a 4.0-ohm and 5.0-ohm resistor What is the current in the circuit?

If a 9.0 volt battery is connected to a 4.0-ohm and 5.0-ohm resistor connected in series, the current in the circuit is 1.0 amperes. If a 9.0 volt battery is connected to a 4.0-ohm and 5.0-ohm resistor connected in parallel, the current in the circuit is 0.5 amperes.


What is the voltage drop across a 12 ohm resistor with a source of 24 volts?

If there's nothing else between the ends of the resistor and the power supply, then the voltage across the resistor is 24 volts, and the current through it is 2 amperes.


What is current measured using?

amperes


How many amps will you get on a 9 volt battery with a 100 ohm resistor and a 100 ohm resistor and a 470 ohm resistor?

You need to calculate the equivalent resistance. For instance, if the three resistors are connected in series, simply add all the resistance values up. Then, you calculate the current (in amperes) using Ohm's Law (V=IR); that is, you need to divide the voltage by the resistance.


Where would you find a material which is a resistor?

Where would you find a material which is a resistor? You can find a resistor material in Europe