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Why is the bad conductor preferred in the shape of a disc in lees disc method?
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Paper disc diffusion method?
Paper disc diffusion method is used to see what antibiotics or compounds inhibit bacterial growth, or are bacteriostatic. The paper discs are soaked with a select antibiotic or chemical and then placed on a lawn of bacteria in a petri dish. The zones of inhibition are measured around where the disc was placed to determine whether the bacteria was resistant or susceptible to the particular antibiotic or chemical chosen.
How many chloroplast per cell does moss have?
Moss have only one chlorplast per cell.
Is there a size difference between red and white blood cells?
red blood cells are disc shaped while white blood cells have no permanent shape.
Why does a DVD fade light to dark to light?
The LightScribe method uses the laser in a way similar to when plain data is written to the disc; a greyscale image of the label is etched onto the upper side of the disc. In the beginning, the discs were available only in a sepia color but today are available in many colors.
What does it mean when a DVD player shows 'No disc' sign?
it means that there is no disc in the DVD player
What is the preferred method to remove a disc from an optical drive that fails to eject the disc?
If you are referring to a CD drive or a DVD drive, the preferred method is to use a paperclip. I typically use the large paperclip, straighten it out. In the front of the drive look closely for a tiny pin hole. Push the paperclip into the hole and the drive will open.
Why is the rotor disc of energy meter made thin?
Aluminium is a good conductor but it is non magnetic material and therefore cannot be altered by magnetic currents and run true and hence it is preferred.
Is a compact disc a conductor or insulator?
The plastic of a compact disk is an insulator but the metal layer inside it on which the data is written is a conductor.
Which geometric term describes the shape of a CD?
Disc shaped.
What is Disc diffusion method used in antibacterial activity?
In disc diffusion method, special papers like filter papers are cut into little disc-like shapes, dipped into the extract/s to be tested or antimicrobials using sterile forceps which then put on to the cultured microbes to be tested.
What is the best method for compact disc duplication?
The best method to compact disc duplication is to use a machine such as SATA DVD Duplicator. This machine can duplicate both CD's and DVD's and has self diagnostics with power start.
What is the shape name of red blood cells?
biconcave (A.N)
What is Meyer's oscillating disc method?
Meyer's oscillating disc method is a technique used to determine the molecular weight of a polymer by measuring the change in weight of a solution containing the polymer as it oscillates at a specific frequency. This method allows for accurate determination of molecular weight and can be used to study the size and structure of macromolecules.
What is thermal conductivity of a bad conductor by Lee's disc method?
At the steady state rate of heat flowing into a system is equal to rate of heat flowing out of a system.here the rate of heat conducted by poor conductor to block below it is equated to rate of heat radiated by that block
What is string efficiency?
string efficiency refers to the efiiciency of the string which is an assembly of two or more number of insulation disc used between the tower and conductor . it is given by the formula , string efficiency = voltage across the string / number of disc in the string * voltage across the disc nearest the string .
Why drum brake is preferred for vehicle?
Disc brakes are actually preferred on vehicles because they cool more quickly then drum brakes, which allows them to be more effective at braking. However, many cars have rear drum brakes because they are cheaper and easier to replace, and as the rear brakes actually do not have much of an effect on overall braking, it is not necessary to have disc brakes.
Can lee's experiment be done with a good conductor?
That depends entirely on which "Lee" is being referred to and what his or her experiment consisted of. One possibility is that you are referring to the determination of the thermal conductivity of a poor conductor using a thin disk of the material between two brass disks (Lee's Disc Method). In the original experiment, one of the fundamental assumptions is that the disk is a poor conductor and thus that heat losses through the edges of the disk are negligible - but if the conductor is a good one, this assumption may not be valid and will introduce an indeterminate error into the calculations. It will also cause variable results depending on what external temperature the disk is discharging to (or absorbing from if the surroundings happened to be particularly hot.) For this reason, other methods are recommended for measuring thermal conductivities of good conductors such as Searle's Bar Method.
