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A device that is used to supply electric power to different electronic devices is...
a power supply unit (PSU)
A sort of power supply that is used to recharge batteries is...
a battery charger
A kind of electronic element commonly used to stabilize voltage is...
a Zener diode
The small unwanted residual periodic variation of the rectified voltage is...
ripple voltage
An atom or molecule which has lost or gained one or more electrons is...
an ion
An electronic device that converts solar energy into electricity is...
a solar cell / a photovoltaic cell
An electronic circuit that produces a repetitive electronic signal is...
an electronic oscillator
A group of two or more secondary cells is...
a rechargeable battery
An electronic device for increasing the power and / or amplitude of a signal is...
an electronic amplifier
A semiconductor device commonly used to amplify or switch electronic signals is...
a transistor
A device that uses a short optical transmission path to transfer a signal between elements of a circuit is...
an optocoupler / a photocoupler / an opto-isolator
An interconnection of electric and electronic components is...
an electronic circuit