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Ohm's Law: Current = Voltage divided by resistance

9 volts divided by 3 ohms = 3 amperes.

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14y ago

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In a circuit diagram the resistance is 100ohms and the current is 0.1 amperes?

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What is the method for calculating amperes and current?

To calculate amperes, you can use Ohm's Law: amperes = voltage ÷ resistance. Current is the flow of electric charge, measured in amperes, that passes through a conductor in a unit of time. You can measure current using an ammeter in a circuit.


What gets used up in an electric circuit current or energy?

One of Kierchieff's laws tell us that the more wattage (energy) consumed by an electrical device in a circuit, the larger the voltage difference that exists across the device and the greater the current flowing through it. The energy consumed is directly proportional to the Impedance of the electrical device but is more importantly proportional to the square of the current. WATTS=VOLTS X AMPERES= RESISTANCE (IMPEDANCE) X AMPERES X AMPERES A Circuit with Current but without resistance would exhibit no energy at all.


What is the current when a voltage of 36 volts is applied to a circuit with a resistance of 6 ohms?

Six amperes. Use Ohm's law: the current is the voltage divided by the resistance


If a circuit has a resistance of 4 ohm's how much voltage is needed to produce a 1.4 current in the circuit?

Voltage across a resistance = (resistance) x (current through the resistance) =4 x 1.4 = 5.6If the ' 1.4 ' is Amperes of current, then the required voltage is 5.6 volts.


What is the ratio of electric current and voltage in the closed circuit?

The name given by engineers to the ratio of "electrical potential difference" (expressed in volts) to "rate of current flow" (expressed in amperes) is "resistance" (expressed in ohms).


What is measured in amperes a current voltage or an Resistance?

Electrical current is measured in amperes.


What is the ratio of potential difference to the current of a circuit?

The ratio of potential difference to current in a circuit is known as resistance, measured in ohms (Ω). This relationship is described by Ohm's Law, which states that resistance equals voltage divided by current (R = V/I).


Total amperage in a series circuit?

Voltage divided by total resistance will give the current. The resistance is simply the sum of all the individual resistances.


What is the resistance of the circuit if current flow is 6 amperes in a 120-V circuit?

Google Ohms Law. It will give you all the formulas you need to compute Ohms,Volts and Amps. Simple formulas :-)


How much current is in a circuit that includes a 9 volt battery and a bulb with a resistance of 12 ohms?

The current depends on the total effecvtive resistance of everything connectedacross the battery.If the bulb is the only component there, then the current is E/R = 9/12 = 0.75 amperes.


The current in a circuit is measured in?

Amperes