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Rheostat-A rheostat is a

                          Diode Type 2-It stops the                          two-terminal variable
                          current flow in one                     resistor
               direction

                                                                             Resistors-A resistor is a

                            Diode Type-light-Also                            two-terminal electronic
                            called LEDs used for                  component that opposes an electric
                            emitting light.                       current by producing a voltage
                                                                  drop between its terminals in
                                                                  proportion to the current.

                         Diode-Schottky-a
                         semiconductor diode with a
               low forward voltage                                         Solar Cell-Used to generate
                                                                           Solar energy.


                       Earth Ground-To throw away
                       additional current to earth.                          Transformer-To transform
                                                                             high AC To low AC and
                                                                  vice versa.

                         Exclusive OR-It is a type of
                         OR gate only.
                                                                          Transistor PNP-The arrow in
                                                                          the PNP transistor symbol is

                          Integrated Circuit-It                           on the emitter leg
                          contains thousands of
               transistors within it.
                                                                            Transistor NPN-An NPN
                                                                            transistor is formed by

                          Rectifier-electrical device                       introducing a thin region of
                          that converts alternating               P-type semiconductor
               current (AC) to direct current (DC).

                                                                              Voltmeter-Used to

                            Relay-electrical switch                           measure Volts
                            that opens and closes
                            under the control of
                            another electrical circuit.                       Wattmeter-Used to
                                                                              measure watts i.e Power






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