Control Electricals Interview Questions and Answers

Ohm's law states that the current flowing through a conductor is directly proportional to the voltage across it, and inversely proportional to the resistance of the conductor.

• Ohm's law is represented by the formula V = IR, where V is voltage, I is current, and R is resistance.

• It helps in calculating the relationship between voltage, current, and resistance in an electrical circuit.

• It is named after the German physicist...read more

Power is the rate at which work is done or energy is transferred, while power factor is the ratio of real power to apparent power in an electrical system.

• Power is measured in watts (W) and is calculated as the product of voltage and current in an electrical circuit.

• Power factor is a dimensionless quantity ranging from 0 to 1, with 1 indicating perfect efficiency in power transfer.

• A high power factor indicates that most...read more

Power 3 phase refers to a type of electrical power distribution system that uses three alternating currents.

• Power 3 phase system has three conductors carrying three alternating currents with a phase difference of 120 degrees.

• It is commonly used in industrial and commercial applications for its efficiency and ability to power heavy machinery.

• Each phase in a 3 phase system reaches its peak at different times, providing a...read more