Table of content
1. AC full form
2. History
3. Direct Current
4. Advantages of alternating current /advantages of AC over DC
1. AC full form
2. History
3. Direct Current
4. Advantages of alternating current /advantages of AC over DC
AC full form
An alternating current (AC) is a current that reverses direction periodically and varies continuously in magnitude over time, unlike a direct current (DC), which flows in only one direction. Alternating current is the form in which electrical energy is supplied to businesses and homes, and is the form of electrical energy commonly used by consumers when they plug kitchen appliances, televisions, fans, and lights into wall outlets. A common DC source is a flashlight battery cell. The abbreviations AC and DC are often used simply to mean directly alternating when changing current or voltage. The usual AC waveform in most electrical circuits is sinusoidal, with the positive half-cycle corresponding to the positive direction of current flow and vice versa. Certain applications, such as guitar amplifiers, use different waveforms such as triangle and square waves. Audio and radio signals transmitted over wires are also examples of alternating currents. These types of ac power carry information such as sound (audio) and images (video), sometimes transmitted by modulating an ac carrier signal. These currents typically alternate at frequencies higher than those used in power transmission. If you are preparing for competitive exams and are looking for expert guidance, you can check out our General Knowledge Ebook Free PDF: https://www.safalta.com/general-awareness-free-e-bookHistory
The primary alternator to deliver alternative current was a dynamo-electric generator based on Michael faraday's standards built by the french instrument creator Hippolyte pixie in 1832. Pixii afterward included a commutator to his gadget to create the (at that point) more commonly utilized coordinate current. The most punctual recorded commonsense application of rotating current is by Guillaume Duchenne, creator and engineer of electrotherapy. In 1855, he reported that ac was predominant to coordinate current for electrotherapeutic activating of muscle contractions. Substituting current innovation was created and assisted by the Hungarian Ganz works company (the 1870s), and within the 1880s: Sebastian Ziani de Ferranti, Lucien Gaulard, and Galileo Ferraris. In 1876, Russian builder Pavel Yablochkov designed a lighting framework where sets of acceptance coils were installed along a tall voltage AC line. Rather than changing voltage, the essential windings exchanged control to the auxiliary windings which were associated with one or a few 'electric candles' (circular segment lights) of his claim design, utilized to keep the disappointment of one light from impairing the complete circuit. In 1878, the Ganz manufacturing plant, Budapest, Hungary, started fabricating hardware for electric lighting and, by 1883, had introduced over fifty frameworks in Austria-Hungary. Their ac frameworks utilized bend and glowing lights, generators, and other equipment.Also Read:
Direct Current
DC, as the name suggests, means direct current, and direct means straight or in the same direction. As we know there are two types of electricity, called alternating current or alternating current, and direct current, also known as direct current.You may also read Our Free E-Books For Last Minute Revision:
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Advantages of alternating current /advantages of AC over DC
- AC power can be transmitted over long distances using a step-up transformer, but DC power cannot be transmitted this way.
- Generating and transmitting AC power as dc power is cheap and easy. The efficiency of an alternator is higher than a DC generator. Power loss when transmitting ac power is very small.
- AC size can be reduced without losing much energy. DC motors require brushes to make electrical contact with the moving coil of wire, while ac motors do not.
- AC power causes less interference to nearby communication cables, such as telephone lines. Suitable for domestic and industrial applications.
- AC power also increases the efficiency of AC machines, so the iron and copper losses in DC machines and transformers are smaller.
What is the Full Form of AC?
An alternating current (AC) is a current that reverses direction periodically and varies continuously in magnitude over time, unlike a direct current (DC), which flows in only one direction. Alternating current is the form in which electrical energy is supplied to businesses and homes, and is the form of electrical energy commonly used by consumers when they plug kitchen appliances, televisions, fans, and lights into wall outlets. A common DC source is a flashlight battery cell. The abbreviations AC and DC are often used simply to mean directly alternating when changing current or voltage. The usual AC waveform in most electrical circuits is sinusoidal, with the positive half-cycle corresponding to the positive direction of current flow and vice versa. Certain applications, such as guitar amplifiers, use different waveforms such as triangle and square waves. Audio and radio signals transmitted over wires are also examples of alternating currents. These types of ac power carry information such as sound (audio) and images (video), sometimes transmitted by modulating an ac carrier signal. These currents typically alternate at frequencies higher than those used in power transmission.
Describe the brief history of AC.
The primary alternator to deliver alternative current was a dynamo-electric generator based on Michael faraday's standards built by the french instrument creator Hippolyte pixie in 1832. Pixii afterward included a commutator to his gadget to create the (at that point) more commonly utilized coordinate current. The most punctual recorded commonsense application of rotating current is by Guillaume Duchenne, creator and engineer of electrotherapy. In 1855, he reported that ac was predominant to coordinate current for electrotherapeutic activating of muscle contractions. Substituting current innovation was created and assisted by the Hungarian Ganz works company (the 1870s), and within the 1880s: Sebastian Ziani de Ferranti, Lucien Gaulard, and Galileo Ferraris. In 1876, Russian builder Pavel Yablochkov designed a lighting framework where sets of acceptance coils were installed along a tall voltage AC line. Rather than changing voltage, the essential windings exchanged control to the auxiliary windings which were associated with one or a few 'electric candles' (circular segment lights) of his claim design, utilized to keep the disappointment of one light from impairing the complete circuit. In 1878, the Ganz manufacturing plant, Budapest, Hungary, started fabricating hardware for electric lighting and, by 1883, had introduced over fifty frameworks in Austria-Hungary. Their ac frameworks utilized bend and glowing lights, generators, and other equipment.
What are the Advantages of alternating current /advantages of AC over DC?
Advantages of alternating current /advantages of AC over DC
- AC power can be transmitted over long distances using a step-up transformer, but DC power cannot be transmitted this way.
- Generating and transmitting AC power as dc power is cheap and easy. The efficiency of an alternator is higher than a DC generator. Power loss when transmitting ac power is very small.
- AC size can be reduced without losing much energy. DC motors require brushes to make electrical contact with the moving coil of wire, while ac motors do not.
- AC power causes less interference to nearby communication cables, such as telephone lines. Suitable for domestic and industrial applications.
- AC power also increases the efficiency of AC machines, so the iron and copper losses in DC machines and transformers are smaller.