ewan ko
Faraday says you will induce a current in the wire.
because when we inoculate the culture with wire loop,some organism may be sticked to it which may be harmful or can cause trouble.so to destroy the remaining organisms wire loop is flamed again.
AC and DC Dynamo, galvanometers, etc...
in the same direction as the field
A wire loop is heated in a Bunsen burner to sterilize it before use in microbiological procedures, such as inoculating cultures. Heating the loop to red-hot temperatures helps to kill any microorganisms present on the loop, reducing the risk of contamination during experiments.
The shape of the loop of wire is two concentric semicircles.
Flaming the loop when streaking for isolation helps to sterilize the loop by burning off any remaining bacteria from previous streaking or inoculation. This reduces the chances of cross-contamination and ensures that only the desired bacteria are being streaked onto the plate.
Smear is one of the forms in which organisms are viwed under the light microscope in microbiology, the other form is as wet mounts, remember that smear is used to view killed organisms the steps in making smear are as follow: 1-Get a grease free slide and a wire loop. 2-sterilize the wire loop by flaming. 3-deep the wire loop in a normal saline. 4-touch the slide with the wire loop, there will be a drop of normal saline on the slide. 4-sterilize the wire loop again and touch a small part of a colony in petri dish, then mix it with the normal saline on the slide. 5-allow it to air dry. 6-pass it through an open flame three times(heat fixation). Then view under the microscopes. The heat fixation is done in order to: 1-to fix the smear to the slide. 2-to kill the organism 3-to alter the organism so that it can accept stain readily.
When sterilizing a loop, grasp the handle firmly and begin flaming it starting at the end near the grip, flaming slowly down towards the loop, being sure that the wire is glowing orange. This ensures that the loop is being flamed properly and sterilizing.
When no net force acts on a loop of wire in a magnetic field, the loop will not experience any acceleration or movement.
ewan ko
why, if the same current flows in a wire coil and a single loop, the magnetic field inside the coil stronger than the field inside the loop
No it will not. In order to get electrical activity you need motion. Either the magnet or the wire must move.
Increasing the strength of the magnetic field passing through the loop, increasing the number of turns in the wire loop, or increasing the speed at which the magnetic field changes can all increase the current in a stationary wire loop through Faraday's law of electromagnetic induction.
When an electric current runs through a loop of wire, it generates a magnetic field around the wire. This phenomenon is known as electromagnetism.
The magnitude of induced current in a wire loop when exposed to a changing magnetic field is determined by factors such as the strength of the magnetic field, the rate of change of the magnetic field, the number of turns in the wire loop, and the resistance of the wire.