Physics Experiment 7

Physics Experiment 7To Measure area Of irregular shape by Different Methods.Click Here To ViewA common problem for a surveyor is the calculation of the surface area of a farmer's field. The fields are often irregular which makes direct calculation of their areas difficult. In such case fields are divided into a number of regular areas (triangles, rectangles, etc.), of which the surfaces can be calculated with simple formulas. All areas are calculated separately and the sum of these areas gives the total area of the field.

Physics Experiment 8

Physics Experiment 8To Study Charectristics of Light Emmiting Diode (L.E.D)Click Here To ViewLight emitting diodes (LEDs) were first developed in the 1960s, but only in the past decade have LEDs had sufficient intensity for use in more than a handful of lighting applications (Stringfellow and Craford 1997), and specifiers are confronted with an increasing number of lighting products that incorporate LEDs for certain applications. Primarily, these applications have taken advantage of the characteristics of LEDs that have made them most suitable for indication, not illumination (Bierman 1998).

Physics Experiment 9

Physics Experiment 9To Study of the voltage & current of the Solar Cells.Click Here To ViewPhotovoltaic modules, commonly called solar modules, are the key components used to convert sunlight into electricity. Solar modules are made of semiconductors that are very similar to those used to create integrated circuits for electronic equipment. The most common type of semiconductor currently in use is made of silicon crystal. Silicon crystals are laminated into n-type and p-type layers, stacked on top of each other. Light striking the crystals induces the “photovoltaic effect,” which generates electricity. The electricity produced is called direct current (DC) and can be used immediately or stored in a battery. For systems installed on homes served by a utility grid, a device called an inverter changes the electricity into alternating current (AC), the standard power used in residential homes.

Physics Experiment 6

Physics Experiment 6To Study Half Wave rectifier using PN Junction DiodeClick Here To View

Here, ɳ = emission co-efficient, which is a number between 1 and 2, which typically increases as the Here, ɳ = emission co-efficient, which is a number between 1 and 2, which typically increases as the current increases.

Equation and all about it.

The p-n junction diode equation for an ideal diode is given below

I = I_S[exp(eV/K_BT) - 1]

Here, I

Here, I_S = reverse saturation current

e = charge of electron

K

e = charge of electron

K_B = Boltzmann constant

T = temperature

For a normal p-n junction diode, the equation becomes

I = I

T = temperature

For a normal p-n junction diode, the equation becomes

I = I_S[exp(eV/ɳK_BT) - 1]