ব্যাখ্যা: The electrical drive system is defined as the system which is used for controlling the speed, torque and direction of an electrical motor.

ব্যাখ্যা: UPS = Uninterruptible Power Supply

ব্যাখ্যা: Transducer: A transducer is an electronic device that converts energy from one from to another. Example: Microphones, thermometers, antenna etc. Transformer: A transformer is a passive component that transfers electrical energy from one electrical circuit to another circuit. Amplifier: An amplifier is a circuit, which can be used to increase the amplitude of the input current or voltage at the output by means of energy drawn from an external source Oscillator: Oscillator convert direct from a power supply to an alternating current oscillating electronic signal, often a sine wave or a square wave and triangle wave.

ব্যাখ্যা: Classification of recording four types: (i) Process: (i) Summary; (iii) Verbatim; (iv) Now-verbatim