1.What is Ohm's Law?
2. What is the equation form of this Law?
3. What is Current?
4. What is Voltage?
5. What is Resistance?
6. What is Conductance?
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OHM'S LAW
The mathematical relationship between current, voltage and resistance in which current in a resistor varies in direct proportion to the voltage applied to it and is inversely proportional to the resistor's value.
EQUATION FORM
General Rule:
1. Assuming the resistance does not change
* voltage increases, current increases
* voltage decreases, current increases
2. Assuming the voltage does not change
* resistance increases, current decreases
* resistance decreases, current increases
3 BIG NAMES
CURRENT
> The flow of electric charge measured in Amperes (A).
>The force (pressure) that causes current to flow. Measured in Volts (V).
RESISTANCE
>The opposition of current flow. Measured in Ohms (Ω).
The report is very interesting because it tackle about the things that new to our mind . It was explained well and the pictures help the viewers/readers to understand it more easily. It is very helpful because ohm law is one of the basics and in order for us to understand complicated things , we must start learning the basics.
ReplyDelete- Marielle A. Guese
That's true Marielle.
ReplyDeleteSo, do you have any question regarding this topic? :)
Anyways, thank you!
how did you say that the current, voltage and resistance is the 3 big names? :)
ReplyDeleteSir Mark, The book says that the current, voltage and resistance are the 3 big names because that is the basic component of Ohm's Law. Voltage is the difference in charge between two points, Current is the rate at which charge is flowing. Resistance is a material’s tendency to resist the flow of charge (current). it's just because they have a relationship to each other.
DeleteIn voltage, how did the force(pressure) measured in a "number" of volts?
ReplyDelete#Sorry newbie in electronics.
Romel, it is not a common force but the force measured in volts is Electromotive force, also called emf (denoted and measured in volt), is the voltage developed by any source of electrical energy such as a battery or dynamo. It is generally defined as the electrical potential for a source in a circuit.
DeleteWho is the person that created the equation form of Ohm's Law?
ReplyDeleteAdrian, Georg Simon Ohm is a German physicist who discovered the law, named after him, which states that the current flow through a conductor is directly proportional to the potential difference (voltage) and inversely proportional to the resistance. And that's the equation form :)
DeleteHow does the size of a resistor affect its resistance?
ReplyDeletefirst time haha..
Maam/Sir, Yes. The size of resistor affect its resistance. The smaller the size, the lesser the resistance may applied, but the bigger the size, the higher the resistance may applied :)
DeleteDarryl Hoyumpa po Mam unknown po kasi ehh
DeleteHow do you charge an insulator?
ReplyDeleteDarryl, When you rub two different insulating materials against each other they become electrically charged. This only works for insulated objects -
DeleteWhen the materials are rubbed against each other:
Negatively charged particles called electrons move from one material to the other.
The material that loses electrons becomes positively charged.
The material that gains electrons becomes negatively charged.
Both materials gain an equal amount of charge, but the charges are opposite.
oks na po ma'am wala nako maitanong nandito naman na yung mga answers pon eh :)
ReplyDeletemam san po ginagamit yung ohm's Law or saan ito inaaply '?
ReplyDeleteVin,actually almost entire study of electronic revolve around the concept of Ohm's law. There are large number of daily application of ohm's law in a real world. Incandescent Bulbs are the most used one :)
DeleteWhy it is voltage also called "potential differencel" maam?
ReplyDeleteis this topic related to maam mylene, in getting the value of resistance given the voltage and current?
Jason, the potential difference would be like this: If two places are in different electrical conditions they are said to have a difference in potential, in other words they have a potential difference. An example would be a thunder cloud and the Earth's surface. There is potential for an electric current to flow.
DeleteSince this potential difference is measured in volts the word "voltage" is quite often used as an alternative to potential difference. This is related to the topic of ma'am mylene :)
ma'am tanong ko lang po .. what is the difference between the potential energy to electromotive force?
ReplyDeleteJudy Ann, Potential energy is the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors. while Electromotive force is considered as a difference in potential that tends to give rise to an electric current :)
DeleteMa'am there's something wrong with the General Rule section. I think it has to be "*voltage increases, current decreases". Btw ma'am why does the voltage increases/decreases only when the resistance is not changing?
ReplyDeleteThanks ma'am this blog is so useful for students like us ;)
Teddy, It depends on how you increase the voltage if you increase it by keeping the power of the source constant or not,,
Deleteif the power of the source is constant then the current would decrease when voltage increasing. if you don’t care about the power and just simply replace the battery with a new one’s with higher power rating this can increase the current. The relationship of Voltage and resistance is based to the concept of Ohm's law. Just look into the meaning and you'll understand it :)
maam nakakabaog ba talaga pag nakuryente ? hahahah bakit ?
ReplyDelete-buscagan
Buscagan, Its definitely No, it doesn't. Sperm regenerate their counts every 8-12 hours, so even if any are damaged, they are resorbed by the body, and new, healthy sperm are produced. If there is a problem with sperm count or fertility, it's not from an electric shock. :)
Deleteare we going to study about ohms law and kirchhoffs also maam??
ReplyDeletePhoebe, yes you are going to study more about ohm's law and kirchoff's law :)
DeleteMaam, tumatayo po ba talaga yung buhok pag nakukuryente ka?
ReplyDeleteIts simple. The electric line and the hair carry same charges, and since like Charges repel each other,this charges tends to push very far away from each other, and so this causes the hair to rise. The principle is 'the more the quantity of charges the more the hair tends to rise straight'.
DeleteMaam, ano pong coverage ng midterm exam natin?
ReplyDeleteJerome, i still don;t know what is the coverage of the midterm exam. I'll get you update as long as i have an information :)
DeleteMaam Rica :) What is the differences between four, five and six band resistor? :)
ReplyDeleteMa'am Jolina, aside from the number of bands, the way of getting the value is very different. FOUR band resistor has 4 colors. The first 2 color bands indicates the significant values, The 3rd color band is the decimal multiplier and the 4th color band indicates the resistors tolerance. FIVE band resistor has 5 colors. The first 3 colors indicates the significant values. The 4th color band is the decimal multiplier and the 5th color band indicates the resistors tolerance. SIX band resistor has 6 colors. The first 3 color bands indicates the significant values, resistors value. The 4th color band is the decimal multiplier. The 5th color band indicates the resistors tolerance and the 6th color band indicates the TCR (Temperature Co-efficient of Resistance) :)
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