B. Identify appliances/equipment that require transformers.
All the appliances which are functioning or dependent to electricity has a transformer or required a transformer.
This are examples of appliances that requires appliances
Step-up Transformer
In a step-up transformer the potential difference across the secondary coil is greater than the potential difference across the primary coil.
Step-Up Transformers are one of the really common and vital electrical tools used in power transmission and modification. They are usually the first major transformer in a transmission system and are often used in various forms throughout the system.
Step-Up Transformers are based on the same formulas that other transformers are, but the key element is that they convert voltages to higher volumes while reducing amperage and effects of resistance. This makes Step-Up Transformers ideal in long-distance power transmission use; by stepping up voltage and reducing amperage little energy is lost to resistance.
Step-down Transformer
Step down transformers are designed to reduce electrical voltage. Their primary voltage is greater than their secondary voltage. This kind of transformer "steps down" the voltage applied to it. For instance, a step down transformer is needed to use a 110v product in a country with a 220v supply.
Step down transformers convert electrical voltage from one level or phase configuration usually down to a lower level. They can include features for electrical isolation, power distribution, and control and instrumentation applications. Step down transformers typically rely on the principle of magnetic induction between coils to convert voltage and/or current levels.
Step down transformers are made from two or more coils of insulated wire wound around a core made of iron. When voltage is applied to one coil (frequently called the primary or input) it magnetizes the iron core, which induces a voltage in the other coil, (frequently called the secondary or output). The turns ratio of the two sets of windings determines the amount of voltage transformation.
An example of this would be: 100 turns on the primary and 50 turns on the secondary, a ratio of 2 to 1.
Step down transformers can be considered nothing more than a voltage ratio device.
With step down transformers the voltage ratio between primary and secondary will mirror the "turns ratio" (except for single phase smaller than 1 kva which have compensated secondaries). A practical application of this 2 to 1 turns ratio would be a 480 to 240 voltage step down. Note that if the input were 440 volts then the output would be 220 volts. The ratio between input and output voltage will stay constant. Transformers should not be operated at voltages higher than the nameplate rating, but may be operated at lower voltages than rated. Because of this it is possible to do some non-standard applications using standard transformers.
Single phase step down transformers 1 kva and larger may also be reverse connected to step-down or step-up voltages. (Note: single phase step up or step down transformers sized less than 1 KVA should not be reverse connected because the secondary windings have additional turns to overcome a voltage drop when the load is applied. If reverse connected, the output voltage will be less than desired.)
So in a step-up transformer the potential difference across the secondary coil is greater than the potential difference across the primary coil while in a step-down transformer the potential difference across the secondary coil is less than the potential difference across the primary coil.
In 1802 Gian Domenico Romagnosi had described electric current from a voltaic pile (an early type of battery) deflecting a magnetic needle. Although published in an Italian newspaper ("Foglietti Universali", Rovereto), this was largely overlooked by the scientific community.[3]
On 21 April 1820, while preparing for an evening lecture, Ørsted noticed a compass needle deflected from magnetic north when electric current from a battery was switched on and off. This deflection convinced him that magnetic fields radiate from all sides of a wire carrying an electric current, as do light and heat, confirming a direct relationship between electricity and magnetism. Three months later he began more intensive investigations and soon thereafter published his findings, showing that an electric current produces a magnetic field as it flows through a wire.
His findings stirred much research into electrodynamics throughout the scientific community, influencing French physicist André-Marie Ampère's developments of a single mathematical formula to represent the magnetic forces between current-carrying conductors. Ørsted's work also represented a major step toward a unified concept of energy.
In 1822, he was elected a foreign member of the Royal Swedish Academy of Sciences.
As I finished the interview I've learned a lot like about what is Mecca, what are the five pillars, what is Ramadan and also what is Hajj. So as I made a generalization this is what come up to my mind.
Ramadan is one of the most important day if Muslims. It is the day which all Muslims will sacrifice themselves for thirty days or one month. The main purpose why they celebrate Ramadan is it because it's the way of cleansing their sins and it is the way of thanks giving from all of the blessings they had received. It includes Fasting and Repentance. In Hajj, I've learned that Hajj is the time which they will go to Mecca and spend their time for almost a month and after that month staying in Mecca and receive or hear the Islam words. They will now become a Hajj. Last one is the Mecca, and Mecca is the holy place for Muslims and this is the place were they praising Allah.
Have you already seen this image of Mr. Jose De Venecia who is the speaker of the hause and "KOKEY" the alien of "YEKOK"??
I got this Image from my friend in his facebook album. This image make me crazy when I read all the comments of my other friends because some of my friends comment states that "KOKEY" and MR. De Venecia have the same shape of face same with the lips but the difference is the nose. . . Just observe and compare the image and judge them. :))