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Ohm's Law, in the sense of the ratio of voltage to current giving the value of the circuit's opposition to current flow, applies to both d.c. and to a.c. (interestingly, it also applies to magnetic circuits!).
For d.c., the opposition is resistance, so V/I = R. But for a.c., the opposition is impedance, so V/I = Z.
For a magnetic circuit, the opposition to the formation of magnetic flux is reluctance, so (magnetomotive force/flux) = reluctance.
What else can I help you with?
What is the opposition of current flow measured in?
The opposition of current flow is measured in ohms. For DC circuits it is resistance and for AC circuits it is impedance.
Ac to DC formula?
formula for ac to dc
Do the rules of 0hm's lawas learned in dc theory also apply to ac circuits?
Yes, circuit theory works equally well for ac or dc. But ac circuits also allow capacitance and inductance in addition to resistance, and this is allowed for by using complex numbers for the impedance of the components. So if the supply voltage is 100 v and there is a resistor of 4 ohms in series with a perfect inductor with a reactance of 3 ohms across the supply, the total impedance is 4+j3 ohms, so the current is 100/(4+j3) ohms, which is 20 amps but its total description it 16-j12 amps, showing that the current lags the voltage by 36.87 degrees of phase.
Which choice defines AC and DC correctly?
Choice of electricity defines ac and dc
Can DC series motor work on ac and DC and why?
A dc series motor can work on dc and ac because dc motors are totally reversible.
How kirchhoff laws will differ for AC circuit?
Kirchoff's Law is universally applicable, to AC as well as DC loops.
Is thevenin's theorem is applicable for dc and ac both?
no only ac, im a science and math professsor
Is ohms law applicable to both ac and dc?
Ohm's law is applicable to any circuit, be it DC or be it AC.AnswerOhm's Law is applicable to all linear or ohmiccircuits, regardless of whether they are d.c. or a.c. A linear or ohmic circuit is one in which the ratio of voltage to current is constant for variations in voltage. Ohm's Law does not apply to non-linear or non-ohmic circuits (e.g. tungsten, electronic devices such as diodes, and electrolytes).
What are the function of multimeter?
They allow the user to test: Volts (AC and DC), Amps, Ohms and basic continuity.
Why skin effect for a conductor is not applicable for DC?
As we know that skin effect occures in ac system.skin effect dependes on frequncy.In case of dc syastem frequncy is zero.So skin effect for conductor is not applicable for dc.
Can amps go up if volts goes down in AC?
Yes, if the voltage in an AC circuit decreases, the current may increase to compensate and maintain power (P = V * I). This relationship is governed by Ohm's Law, where current is inversely proportional to voltage in an AC circuit with a constant impedance.
What does a Simpson Meter do?
It measures potential difference, current, and resistance (volts, amps, and ohms), in several AC and DC ranges.
What is the 14 parts of multi tester?
ohms voltage Ac Dc power i think thats all i know sorry guys
What is the opposition of current flow measured in?
The opposition of current flow is measured in ohms. For DC circuits it is resistance and for AC circuits it is impedance.
Is there any possibilty of ac and DC flows in conductor at a time and get DC and AC with two reference AC and DC?
A typical AC waveform is symmetrical about a zero crossing point. You can bias the AC with DC such that the AC waveform is symmetrical about the DC voltage.
Ac to DC formula?
formula for ac to dc
Who is ohm?
Ohm is the SI unit of electrical impedance (AC) or the electrical resistance (DC), named after Georg Ohm. Not Ohms!
