Bharti Airtel Trainee Technician Interview Questions and Answers

Rectifiers are electronic devices that convert alternating current (AC) to direct current (DC).

• Rectifiers are used in power supplies to convert AC voltage to DC voltage.

• They are commonly used in electronic devices such as televisions, computers, and mobile phones.

• Rectifiers can be classified into half-wave rectifiers and full-wave rectifiers.

• Half-wave rectifiers only allow one half of the AC waveform to pass through, w...read more

LNB stands for Low Noise Block. It is a device used in satellite communication systems to receive and amplify satellite signals.

• LNB is typically mounted on a satellite dish and converts the received satellite signals into a lower frequency range.

• It amplifies the signals while minimizing the noise to ensure a clear and strong signal.

• LNBs can have different numbers of outputs, allowing multiple satellite receivers to be ...read more