Interview-Questions-with-answers

Nowadays people around talks more about IOT i.e Internet of Things. Budding all new technologies are now integrated with IOT. IOT becomes one of the giant technology today which acts as a master to networks. So there is huge need for us to know  what is IOT, how it works, how it is used. IOT What is IOT? IOT is a the process of connecting devices to the internet and to the other connected devices. It continuously collects and share data with devices to which it connected.The things used in everyday life  are usually embedded with electronics, sensors, software and network connectivity where it communicate with to share and collects data around the environment. IOT Environment History of IOT IOT was discovered by Kevin Ashton in 1999. He established global research centre to focus on the development of IOT and RFID. He strongly believed that everything in the world can be changed into data and every things of world can be changed into smart one. How IOT...

1.What is the unit of electrical charge? 1.watt 2. joule 3. volt  4. coulomb   Answer: 4 Explanation: unit of Charge -> Coulomb, Energy ->Joule, Voltage -> Volts, Power -> Watts 2 . The minimum resistance value for a blue, gray, red, silver resistor is 1. 612  2. 6,120 3. 6,800  4. 6,460  Answer: 2 Explanation: blue-6 grey-8 red-2 so value is 6800ohms tolerance +-10% therefore minimum resistance value is 6800/100*10=680 6800-680=6120 3 . If the current changes from 4A to 5A in 1s with the emf 10V. then what will be the value of inductance?  1.10H  2. 20H  3. 30H  4. 40H  Answer: 1  Explanation: As emf=L(i2-i1)/t by substituting i2=4A, i1=5A, emf=10V,we get L=10H 4. What happens when many resistors are connected in series? 1. Divides the voltage proportionally 2. Divides the current propotionally 3. Increase the source voltage 4. Decrease the power to zero ...