Calculating the Resistance

Yung resistance po ba nakaka aafect sa flow ng current?

Is there any ways to measure the resistance?

Is the Value of the resistor affect the flowing currents in a circuit?

Any definition of resistance? kase may nabasa ako na may parang definition siya in physics.

DRAVEN wrote:

nyella wrote:why do I need to measure the resistance?

so that we know how to control the flow of the current .

To know kung gaano kalaki o kaliit ang value na pwedeng gamitin sa current
kase ang current flow ehh may ibat iba ding value the higher the value kase ng current must also the higher the resistance para ma resist yung current flow.

Mau wrote:

Pinkeroo wrote:Hi admin, curious lang ako, do you know who discovered resistance?

Georg Simon Ohm discovered the Resistance

Georg Ohm, in full Georg Simon Ohm, (born March 16, 1789, Erlangen, Bavaria [Germany]—died July 6, 1854, Munich), 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.
Ohm became professor of mathematics at the Jesuits’ College at Cologne in 1817. The most important aspect of Ohm’s law is summarized in his pamphlet Die galvanische Kette, mathematisch bearbeitet (1827; The Galvanic Circuit Investigated Mathematically). While his work greatly influenced the theory and applications of current electricity, it was so coldly received that Ohm resigned his post at Cologne. He accepted a position at the Polytechnic School of Nürnberg in 1833. Finally his work began to be recognized; in 1841 he was awarded the Copley Medal of the Royal Society of London and was made a foreign member a year later. The ohm, the physical unit measuring electrical resistance, also was named for him.

mariee wrote:Any definition of resistance? kase may nabasa ako na may parang definition siya in physics.

Resistance is the opposition that a substance offers to the flow of electric current. It is represented by the uppercase letter R. The standard unit of resistance is the ohm, sometimes written out as a word, and sometimes symbolized by the uppercase Greek letter omega: Greek letter omega

What does electrical resistance mean?

What affects the resistance?

What is the function of resistance?

Sitri16 wrote:What does electrical resistance mean?

The electrical resistance of an object is a measure of its opposition to the flow of electric current. The inverse quantity is electrical conductance, and is the ease with which an electric current passes.

Sitri16 wrote:What affects the resistance?

There are several factors that affect the resistance of a conductor; material e.g. copper has lower resistance than steel. length - longer wires have greaterresistance. ... temperature - heating a wire increases its resistance.

Sitri16 wrote:What is the function of resistance?

A resistor is a passive two terminal electrical component that implements electrical resistance as a circuit element. In electronic circuits, resistors are used to reduce current flow, adjust signal levels, to divide voltages, bias active elements, and terminate transmission lines, among other uses.

What does high electrical resistance mean?

What factors affect electrical resistance?

Ange wrote:What does high electrical resistance mean?

High electrical resistance is the opposition to current flow within a circuit. A high electrical resistance of an electrical conductor is the opposition to the flow of an electric current through that conductor; the inverse measure is known as electrical conductance.

Mau wrote:Is there any ways to measure the resistance?

Insert these values into Ohm's Law. Rearrange V = IR to solve for resistance: R = V / I (resistance = voltage / current). Plug the values you found into this formula to solve for total resistance. For example, a series circuit is powered by a 12 volt battery, and the current is measured at 8 amps.