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).
I = V / R In this equation, i = current in amperes, v = potential in volts, r = resistance in ohms Using this you can calculate any of the three given two are known.
It's known as Ohm's Law
Volts (V) = Current (I) x Resistance (R)
R= V/I
I=V/R
That's the resistance (DC) or impedance (AC) of the device through which the current flows.
The ratio of voltage to current is resistance.
Electric power
We can calculate the climate ratio to determine the climate type.if the climate ratio is less than 0.4 the climate type would be arid,if the climate ratio is between 0.4 to 0.8 climate ratio would be semirid ,if the climate ratio is between 0.8 to 1.2 climate type would be subhumid andif the climate ratio is greater than 1.2 climate type would be humid.The formula for climate ratio is p/Ep, wherep=precipitationEp=potential evapotranspiration.
(rho/potential_density) = (p/reference pressure)^(1/gamma) where gamma is the ratio of specific heats Cp/Cv = 1.40.
The current in the secondary winding of a transformer is not determined by the current flowing in the primary winding; rather, it is the other way around.The current flowing through the secondary winding of a transformer is determined by the load to which it is connected. The primary current can then be determined from the turns ratio.
blow ratio is the ratio of mold diameter to the preform diameter.
The earth/moon radius ratio is about 3.67/1 and the mass ratio is about 80/1.
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).
Resistance is the opposition to the flow of electric current through a conductor. It is defined as the ratio of the potential difference (volts) between the ends of the conductor to the magnitude of the current (amps) through the conductor.
Short circuit ratio is the ratio of field current required for the rated voltage at open circuit to the field current required for the rated armature current at short circuit
The current is represented by the horizontal (x) axis, and the potential difference is represented by the vertical (y) axis.If the resulting graph is a straight line, then it confirms that the circuit is obeying Ohm's Law. If the resulting graph is a curve, then the circuit does not obey Ohm's Law.The gradient at any point along of the resulting line represents the resistance of the load for that ratio of voltage to current.
Ratio of field current required to produce rated voltage in open circuit to the field current required to produce rated current in short circuit.
That is the resistance, measured in ohms.
short circuit ratio is the ratio of field current to open short circuit voltage n the open circuit current. its value for thermal is less than hydro type.
Checked Stephen J. Chapman's Electric Machinery Fundamentals page 287. It says: Short Circuit Ratio (SCR) for the synchronous generator is the ratio of the field current required for the rated voltage at OPEN circuit to the field current require for the rated armature current at SHORT circuit.
Change the resistance in the circuit
Ohms Law. I = V / Rwhere V is the potential difference measured across the resistance in units of volts; I is the current through the resistance in units of amperes and R is the resistanceof the conductor in units of ohms.Alternative AnswerThe ratio of voltage (V) to current (I) is called 'resistance', i.e: R = V/I. If this ratio is constant for variations in voltage, then the circuit is said to be 'linear' or 'ohmic', and obeys Ohm's Law. If the ratio changes for variations in voltage, then the circuit is said to be 'non-linear' or 'non-ohmic', and the circuit does not obey Ohm's Law. As most circuits are non-linear, it is clear that Ohm's Law is not a universal law.
the ratio would be 2:1.
Your question reveals fundamental misunderstandings about the nature of electricity.'Voltage' is simply another word for 'potential difference', and a potential difference appears across opposite ends of the resistor; it doesn't 'travel through' that resistor! Current, on the other hand, DOES 'travel through' the resistor and is caused by the potential difference across the resistor.Resistance is the ratio of potential difference to current. So if the resistance remians unchanged when the current through it doubles, then it has happened because the potential difference has doubled.