In electronic circuits, resistance is used to empede the flow of current. You may want a specific voltage at a given location, so by using resistors, you can obtain that voltage. You may want to limit current, which a resistor can do for you.
But resistance is inherent in everything. Copper wire has resistance, your toaster is really nothing more than a resistor. Resistance is generally considered the load in electrical systems. If it were not for resistance, everything would be considered a short circuit. So you see resistance, although many times not desired, is required.
we use it when we require a variable resistance in a circuit
Resistance is futile!
no we not use resistance in place of diode.
The use of a resistance box or a "Decade Box" is to help calibrate instruments used to measure electrical values such as Voltage, Current, and Resistance. Without them you would not have a known value of resistance to use as a set point.
The electricities resistance stops the electric circuit.
Gandhiji asked the people to use 'Non-violence' as a resistance.
Resistance doesn't "use" either. Resistance is the division of voltage by current. It can be though of as a measure of how hard it is to push electrons through a substance.
Population resistance is also known as pesticide resistance. Pesticide resistance describes a pest population's increasing resistance to a pesticide that use to be effective in terminating said pests.
Yes, this bike does use magnetic resistance. Specifically, it is an electromagnetic resistance system. There are manual or 11 programmed choices to vary the resistance. All you have to do is press the appropriate buttons on the user control panel. Your selection will be reflected on the LED screen.
To measure resistance, you could use an ohmmeter. But ohmmeters are not particularly accurate, so other methods are preferable. These include the use of Wheatstone's Bridge (which compares the unknown resistance with known values) or a Ducter (for very low resistances).
Teak is the best type of wood to use in bathrooms for durability and moisture resistance.
Removing side mirrors from a car will lower it's air resistance.