As stated, AC stands for Alternating Current, which means that the electricity travels back and forth, rather than just in one direction like Direct Current. The main factor that went into the choice of AC over DC was that **AC is more efficient**.

Air-conditioning is that **process used to create and maintain certain temperature, relative humidity and air purity conditions in indoor spaces**. This process is typically applied to maintain a level of personal comfort.

capacitor

AC circuits can be divided into three categories: **Resistive (R), RC, RL, and RLC circuits**.

The voltage and current in an AC circuit periodically change direction (alternating current). In a purely resistive circuit, the voltage and current change direction at the same time (in-phase). Power measurements are made by **measuring the RMS current and voltage and applying the formula P = VrmsArms**.

Alternating current, or ac, theory is **concerned with the mathematical analysis of the steady-state behaviour of electrical circuits in which the currents and voltages vary periodically with time**.

Power factor is defined as **the ratio of the average power in an ac circuit to the apparent power**, which is the product of the voltage and current magnitudes. (1.77) Power factor (PF) has a value between zero and unity.

Alternating current/Inventors

**Audio and radio signals carried on electrical wires** are also examples of alternating current. These types of alternating current carry information such as sound (audio) or images (video) sometimes carried by modulation of an AC carrier signal.

As stated, AC stands for Alternating Current, which means that the electricity travels back and forth, rather than just in one direction like Direct Current. The main factor that went into the choice of AC over DC was that **AC is more efficient**.

A.C. Fundamentals **Instantaneous Value: The instantaneous value of an alternating voltage or current is the value of voltage or current at one particular instant**. Average Value: The average value of an alternating current or voltage is the average of all the instantaneous values during one alternation.

Because the unit for current is ampères, or amps, the symbol for it is A. **“A” with a wavy line over it** = AC current.

The maximum voltage is approximately **155 volts** (110 × 1.41 = 155 volts maximum). In the study of alternating current, any values given for current or voltage are assumed to be effective values unless otherwise specified, and in practice, only the effective values of voltage and current are used.

N/A

- The basic elements of AC circuits are resistors, capacitors, and inductors.
- This allows to generalize the Ohm's law for AC circuits by introducing the complex.
- Let us consider a simple but very important circuit, which is the voltage divider consisting.
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**Pointing at people or things** is considered rude in Japan. Instead of using a finger to point at something, the Japanese use a hand to gently wave at what they would like to indicate. When referring to themselves, people will use their forefinger to touch their nose instead of pointing at themselves.

For those of you wanting the short answer: **A-Level Biology is quite a hard A-Level, even for the most skilled science students**. It's a completely different ball game to GCSE, it goes much more into depth and there's a lot more content you need to know.

Science is **knowledge gained by systematic and logical study in any branches of physical, chemical or natural sciences**, which is gained through observation and experimentation, as facts or principles or hypothesis, to open up new areas of knowledge.

In 1856 **Maxwell** developed the theory that the energy of the electromagnetic field is in the space around the conductors as well as in the conductors themselves. By 1864 he had formulated his own electromagnetic theory of light, predicting that both light and radio waves are electric and magnetic phenomena.

**The 14 principles of Management of Henri Fayol are:**

- Division of Work.
- Authority and Responsibility.
- Discipline.
- Unity of Command.
- Unity of Direction.
- Subordination of Individual Interest.
- Remuneration.
- The Degree of Centralization.

The quantity ds/dt is called the **derivative of s with respect to t, or the rate of change of s with respect to t**. It is possible to think of ds and dt as numbers whose ratio ds/dt is equal to v; ds is called the differential of s, and dt the differential of t.

A response is **a change in the organism resulting from the detection of a stimulus**.

Dated : 07-Jun-2022

Category : Education