Why are carbon brushes used in AC generators? A carbon brush is a sliding contact used to transmit electrical current from a static to a rotating part in a motor or generator, and, as regards DC machines, ensuring a spark-free commutation. Why brushes are used in motor? They can either be graphite or precious metal […]
Is copper wire and magnet wire the same?
Is copper wire and magnet wire the same? Both wires are same by conduct, but the magnet copper wire is specially coated with thin and high heat absorbing material. Thin insulated material help to make more turns in a short area and capable for heat absorb. Magnet wire is copper wire with thin enamel insulation, […]
Is there any energy loss in interference?
Will heating a bolt loosen it?
Will heating a bolt loosen it? Applying heat with a propane torch can expand a nut (or threaded opening) and loosen it. If you’ve tried everything and still can’t free a bolt or nut, try heat. Once you’ve established that it’s safe, aim the flame at the bolt head or nut, not the surrounding metal. […]
Can a poor person become a pilot?
How power is shared between central and state government in federalism?
How power is shared between central and state government in federalism? The division of power between the Central and State Governments is done in a three fold distribution of legislative powers between the Union Government and the State Government. There are three lists i.e. Union List, State List and Concurrent List. How should power be […]
How two of the human organ systems help maintain homeostasis?
How two of the human organ systems help maintain homeostasis? The endocrine, nervous, and muscular systems work together and maintain temperature homeostasis. Insulin, a hormone released from the pancreas, works with the digestive system and maintains energy homeostasis. Which organs are involved in homeostasis? In mammals, the main organs involved with homeostasis are: The hypothalamus […]
What should you not do feedback?
What should you not do feedback? Here are some simple do’s and don’ts to remember when giving feedback. Do’s. Do make sure to be specific. Do give the recipient a chance to respond. Do consider the recipient’s needs. Do only give negative feedback in private. Don’ts. Don’t wait. Don’t sandwich negative feedback between positive messages. […]
Why is it difficult to dissolve sugar in cold water?
Why is it difficult to dissolve sugar in cold water? Answer. Sugar dissolves faster in hot waterthan it does in cold water because hotwater has more energy than cold water. When water is heated, the molecules gain energy and, thus, move faster. As they move faster, they come into contact with the sugar more often, […]
Which process is an example of chemical change?
Which process is an example of chemical change? A chemical change results from a chemical reaction, while a physical change is when matter changes forms but not chemical identity. Examples of chemical changes are burning, cooking, rusting, and rotting. Examples of physical changes are boiling, melting, freezing, and shredding. Is rust a chemical or physical […]