Ohm Law

The relationship of electric current, electric potential and electric resistance on the network express on the Ohm Law. The name of Ohm is taken from physician and mathematician of Germany, George Simon Ohm (1787 – 1854) who create this law. When he experience about electric, he found that:

• If the resistance is fixed, current on the network will proportionate with potential. If potential increase, current flow also will increase.
• If potential difference is fixed, current flow on that network will inversely proportionate with resistance on the network. If resistance is increased than current flow will decrease.

Electric resistance unit is Ohm using symbol Omega, Ω, stating in the formula as follows:

R = V/I or V = I x R or I = V/R
R = network resistance (Ohm, Ω)
I = electric current flow (Ampere, A)
V = potential difference (Volt, V)

The conclusion of his experiment is electric current proportionate with potential difference and inversely proportionate to resistance.

Smallest Phone Cell

New generation and new innovation on phone cell have marketed like Nokia smart phone and Black Berry and also from Sony Ericson like Xperia X2 have distributed their product to the market with newest technology innovations.

Phone cell technology also developed a smallest phone like on the picture below.The new creation on phone cell technology have create a strickt competition on phone cell market. Every phone cell producer try to catch market if they don't want to loose their consument.

Inovation in phone cell technology is not always purpose to sell their product, like on the above model the smallest phone actually will difficult to use. User will more difficult to dial, because the number and letter is too small and also difficult to touch. I think this innovation is just for prestige, not for their market.