Optum Global Solutions Interview Questions and Answers

A motor in electrical engineering is a device that converts electrical energy into mechanical energy to produce motion.

• Motors are commonly used in various applications such as industrial machinery, household appliances, and vehicles.

• There are different types of motors including AC motors, DC motors, and synchronous motors.

• Motors consist of a rotor and a stator, with the rotor rotating inside the stator to generate motion.

• The speed and torque of a motor can be controlled by ad...read more

A generator in electrical engineering is a device that converts mechanical energy into electrical energy.

• Generators use electromagnetic induction to generate electricity

• They are commonly used in power plants, wind turbines, and portable generators

• Generators can be powered by various sources such as gasoline, diesel, natural gas, or renewable energy sources like solar or wind

• They play a crucial role in providing backup power during outages

AC current is the flow of electric charge that periodically reverses direction, typically found in household appliances and power distribution systems.

• AC current alternates direction periodically

• Commonly used in household appliances and power distribution systems

• AC current is represented by a sine wave

• AC current is measured in Hertz (Hz)

DC current in electrical engineering is the flow of electric charge in one direction only.

• DC stands for direct current, which is a constant flow of electric charge in one direction

• DC current is typically produced by batteries, solar cells, and rectifiers

• DC current is used in many electronic devices such as laptops, cell phones, and LED lights

Electricity in electrical engineering refers to the flow of electric charge through a conductor.

• Electricity is the movement of electrons along a path called a conductor

• It is measured in units of voltage, current, and resistance

• Electricity can be generated by sources such as batteries, generators, and solar panels