# why ohm's law is not applicable for ac circuit?

why ohm's law is not applicable for ac circuit?

Ohm's law also applicable for AC circuit but in case of AC there is impedance Z. And in case of DC there is a resistance R.

in AC E=IZ

in DC V=IR

Ohm's law is also applicable for AC circuit.

Ohm's law for AC circuit is given by,

i = v / R = Vm sinωt/R

Where i and v is the instantaneous value of current and voltage.

We can use Ohm's law for AC circuit if circuit consists of linear components and devices.

## Related questions

Description : Ohm’s law is applicable to : (A) Semi-conductors (B) Vacuum tubes (C) Electrolytes (D) Semiconductors and Vacuum tubes

Last Answer : Ohm's law is not applicable to semi-conductors.

Description : is Ohms law applicable to vacuum tubes?

Last Answer : Ohm's law is not applicable to vacuum tubes.

Description : What is ohm’s law for AC circuit?

Last Answer : I = V/Z amps. Z = V/I ohms. V = I * Z volts.

Last Answer : both ac as well as dc

Description : does ohm's law apply to ac circuits?

Last Answer : Yes it does, but as it is supplied with ac we will have to take impedance in account.

Description : Kirchhoff's current law is applicable to 1. Closed loops in a circuit 2. Junction in a circuit 3. Magnetic circuits Which of the above is/are correct ?  (a) 1 only (b) 2 only (c) 3 only (d) 1, 2 and 3

Last Answer : Kirchhoff's current law is applicable to 1. Closed loops in a circuit 2. Junction in a circuit 3. Magnetic circuits Which of the above is/are correct ?  (a) 1 only (b) 2 only (c) 3 only (d) 1, 2 and 3

Description : State Ohm’s law for electric circuit.

Last Answer : Ohms law -States that the current flows in a circuit is directly proportional to the applied voltage (V) and inversely the proportional resistance provided with the temperature main constant

Description : Does the linear circuit obey Ohm's law?

Last Answer : Yes linear circuit obey Ohm's law and nonlinear circuit not satisfied Ohm's law.

Description : An AC circuit has a capacitive reactance of 30 ohms in addition to an inductive reactance of 40 ohms connected in series. What is the reactance of the circuit? A. 8.37 ohms B. 10.00 ohms C. 50.00 ohms D. 70.00 ohms

Description : AC circuits develop resistance, inductance, and capacitance. The inductive reactance of a circuit is expressed in _____________. A. ohms B. mhos C. henrys D. farads

Description : AC circuits possess characteristics of resistance, inductance, and capacitance. The capacitive reactance of a circuit is expressed in _____________. A. ohms B. mhos C. henrys D. farads

Description : If reading AC current with the illustrated device and unsure of the range as a precaution , the first step should be to _________. EL-0047 A. secure power and test for voltage B. disconnect the ... resistance and use Ohm's law to calculate current D. unable to safely measure current with the device

Description : You are provided with a test resistance R, a high resistance R1 and a small resistance R2 , two identical galvanometer G1 and G2 and a variable voltage source V. You are required to set up a circuit for the verification of ohm’s law. Which of the following would be a correct circuit?

Description : Suppose the ammeter or voltmeter you are using in the Ohm’s law experiment does not have +ve and –ve terminal markings. How will you use such ammeter or voltmeter in the circuit?

Last Answer : Answer. We will use a typical battery to determine this. Connect them with wire and the battery if their readings are positive then we have connected them correctly and if their readings in negative then we have connected in opposite polarity.

Description : According to Ohm’s law, what happens to circuit current if circuit resistance (a) increases, (b) decreases?

Last Answer : (a) Current decreases (b) Current increases

Description : According to Ohm’s law, what happens to circuit current if the applied voltage (a) increases, (b) decreases?

Last Answer : (a) Current increases (b) Current decreases

Description : State and explain Ohm's law for magnetic circuit.

Last Answer : Ohm's law for electric circuit is V = I R where V is voltage, I is current, R is Resistance. Ohm's law for magnetic circuit is MMF = Φ X S where MMF is magnetomotive force (NI) ... . Resistance is the opposition to the flow of current while reluctance is the opposition to the flow of magnetic flux.

Description : Ohm's law formula

Last Answer : Ohm's law formula

Description : State and explain Ohm’s law.

Last Answer : Ans: Ohm's law: As long as physical conditions (such as dimensions, pressure and temperature) are constant, the potential difference or voltage applied across the conductor is directly proportional to ... V/R where, R = constant of proportionality, called as the resistance of the conductor.

Description : According to Ohm's law:  (1) The voltage is constant to current (2) The voltage is proportional to current (3) Voltage is inversely proportional to current (4) The voltage is proportional to resistance

Last Answer : At constant temperature current passing through a conductor is directly proporstional to voltage across a conductor

Description : An electrical component is connected across a 120 volt 60 hertz AC supply. What is the current drawn by the component if the impedance is 200 ohms? A. 0.01 amperes B. 0.60 amperes C. 1.67 amperes D. 100 amperes

Description : Before any work on electrical or electronic equipment is performed, which of the following precautions should be carried out? A. De-energize the applicable switchboard bus. B. Bypass the interlocks. C. ... supply circuit breaker in the open position. D. Station a man at the circuit supply switch.

Description : Is vdr only applicable on series circuit

Description : Now that gay marriage is legal in the US, does the common-law kick in as well, where applicable?

Last Answer : answer:Not necessarily. Some states have case law that specifies a husband-wife relationship, thus excluding same-gender couples. Only nine states still contract common-law marriages. People don't become ... law marriage exists when a couple cohabitates and holds itself out to the public as married.

Description : Which Newton’s law is applicable in the case of swimming ? -Science

Last Answer : Newton's third law of Motion

Description : Where is Dalton’s law applicable?

Last Answer : Where is Dalton’s law applicable?

Description : Which of the following is true regarding Newland’s Law of Octaves? (1) It worked well with only lighter elements. (2) It was applicable only up to calcium. (3) Both are correct (4) Both are incorrect. (4)

Last Answer : (3) Both are correct Explanation: Both the statements are correct. Hence, option C is correct.

Description : Which of the following crushing laws is most accurately applicable to the fine grinding of materials? (A) Bond's crushing law (B) Kick's law (C) Rittinger's law (D) None of these

Last Answer : (C) Rittinger's law

Description : Raoult's law is applicable to the (A) Ideal solutions (B) Real solutions (C) Mixture of water and alcohol

Last Answer : (A) Ideal solutions

Description : Which technique is applicable when other projects in the same analogy application domain have been completed? a) Algorithmic cost modelling b) Expert judgement c) Estimation by analogy d) Parkinson’s Law

Last Answer : c) Estimation by analogy

Description : What is local law? a) Is a law applicable to particular law b) It is a law applicable to particular part of India c) Natural law d) None of these

Last Answer : b) It is a law applicable to particular part of India

Description : Kirchoff's law is applicable to (A) Monochromatic radiation only (B) Total radiation only (C) Both (A) and (B) (D) Only volumes and not to surfaces

Last Answer : (C) Both (A) and (B)

Description : Any information received by the officer of the department officially should not be made public but this restrictions are however not applicable to a) Competent court of law b) District magistrate c) Commissioner of Police or District SP d) All the above

Last Answer : d) All the above

Description : The Snell law is applicable for perpendicular polarisation and the Brewster law is applicable for parallel polarisation. State True/False. a) True b) False

Description : Curie-Weiss law is applicable to which of the following materials? a) Piezoelectric b) Ferroelectric c) Pyroelectric d) Anti-ferroelectric

Description : Pascal law is not applicable for a/an __________ fluid. (A) Accelerating frictionless (B) Static (C) Uniformly moving (D) None of these

Last Answer : (D) None of these

Description : Pick out the wrong statement. (A) A fluid mass is free from shearing forces, when it is made to rotate with a uniform velocit (B) Newton's law of viscosity is not applicable to the ... types of bearings (D) Rise of water in capillary tubes reduces with the increasing diameter of capillary tubes

Last Answer : (B) Newton's law of viscosity is not applicable to the turbulent flow of fluid with linear velocity distribution

Description : Muller Breslau's principle for obtaining influence lines is applicable to (i) Trusses (ii) Statically determinate beams and frames (iii) Statically indeterminate structures, the material of which is elastic and follows Hooke's law (iv ... B) (i), (ii) and (iv) (C) (i) and (ii) (D) Only (i)

Last Answer : (A) (i), (ii) and (iii)

Description : Principle of superposition is applicable when (A) Deflections are linear functions of applied forces (B) Material obeys Hooke's law (C) The action of applied forces will be affected by small deformations of the structure (D) None of the above

Last Answer : (A) Deflections are linear functions of applied forces