0
Still curious? Ask our experts.
Chat with our AI personalities
Jordan
Vivi
BeauAdd your answer:
Earn +20 pts
When was the first power drill invented?
In the early 1800's. -The first ones were run off a belt from a steam engine in those days. The first electric ones were made about 1914 for use in war products.
What is the uses of relay?
The RELAY CIRCUIT used in electronics circuits for ,1. It is used for general mechanical SWITCH.2. It is used in High voltage switching mechanisms3. It is used in High voltage and current Applications.
How is power factor improved in fluorescent lamps?
the old ones with transformers you can correct with capacitors incandescent lamps have unity power factor the newer florescent ballasts are closer to unity but tend more towards capacitance
How are resistors classified on the basis of power rating?
The ability of any component part to radiate heat depends partly on the materials it is made from and mainly on its surface area. So, as large-sized resistors have a much bigger surface area than small ones, the power rating of a resistor is made according to the power (Watts) it has been designed to dissipate safely without overheating.
Can you use a potentiometer to adjust the voltage on a dc motor that works between 9 - 18 V?
Probably not, at least not directly... Potentiometers can be used to vary the voltage in a circuit, but they typically do not have a large power rating. Most DC motors, even small ones, pull enough power to overheat a potentiometer.
