Table of Contents
What is a stirrer in a microwave oven?
The stirrer blades distribute the microwave energy to promote even cooking inside the microwave cavity. They prevent hot spots. The blades normally need to be replaced by a service technician. Microwave ovens are inherently dangerous to service.
What does a microwave stirrer fan do?
In the stirrer fan microwave oven and the rotating fan microwave oven, a stirrer fan or a rotating fan disperses the microwave radiated from a waveguide into a cavity.
Why will my microwave not spin?
PROBLEM:The first and most common reason for microwave turntable not turning is an issue with the motor of the turntable. Connect the terminals of the motor with the terminals of the multimeter and check for continuity. If there is no continuity, then you may need to get the motor replaced.
How do you fix a turntable in a microwave that won’t turn?
Help! My Microwave Turntable Won’t Spin
- Unplug the microwave. Safety first, kids.
- Remove the glass tray and the circular turntable guide. Wash them both in warm, soapy water to get rid of anything stuck.
- Clean the internal cavity.
- Check that the drive bushing is working.
- Put it back together.
- Test it out.
What does a stirrer do?
A magnetic stirrer is a device widely used in laboratories and consists of a rotating magnet or a stationary electromagnet that creates a rotating magnetic field. This device is used to make a stir bar, immerse in a liquid, quickly spin, or stirring or mixing a solution, for example.
Why microwave heating is good for puffed products?
Microwave heating is good for puffed products. Why? Explanation: The heat transfer in these food items takes place so fast that instead of shrinking of the food items due to loss of moisture content, they stay intact and hence puffed.
What is a microwave waveguide?
In a microwave oven a waveguide transfers power from the magnetron, where waves are formed, to the cooking chamber. In a radar, a waveguide transfers radio frequency energy to and from the antenna, where the impedance needs to be matched for efficient power transmission (see below).
Can you use microwave without turntable?
The microwave can be used without the revolving glass tray if the door glass is undamaged. The food won’t cook as evenly without the revolving tray and will need to be manually rotates during heating.
Why should we stir the water at the end of the experiment before the temperature reading is taken?
Explanation: Well, so as to prevent hot-spots, and burning on the bottom of the pan. When you do a calorimetric experiment, you have a given mass of water, and you want the temperature rise of this mass to be uniform. So you stir it.
What is stir bar made of?
Stir bars are typically coated in PTFE, or, less often, in glass; the coatings are intended to be chemically inert, not contaminating or reacting with the reaction mixture they are in. Glass may be viable as an alternative if PTFE is unsuitable.