Electronics and Electrical Engineer Interview Questions and Answers for Freshers

PLC is a programmable logic controller used to control industrial processes. Inverter is an electronic device used to control the speed of AC motors.

• PLC is used to automate industrial processes by controlling the input and output signals of machines.

• Inverter is used to control the speed of AC motors by adjusting the frequency of the power supplied to the motor.

• To check PLC input and output, use a multimeter to measure the voltage and current signals.

• To find component faults, ...read more

The unit of power is the watt (W).

• Power is measured in watts (W)

• 1 watt is equal to 1 joule per second

• Common examples: light bulbs (e.g. 60W), electrical appliances, motors

• Power can also be measured in kilowatts (kW) for larger values

The unit of Watt is a measure of power in the International System of Units (SI).

• Watt is named after James Watt, the inventor of the steam engine.

• It is equivalent to one joule per second.

• Common examples of power usage in watts include light bulbs, appliances, and electronic devices.