You are the light technician of the performance. The Director ORDERED you (you do not have a choice!!!) to use the two channel Dimmer PPQQ2019. Every channel has a Maximum Current Imax=30 Amps, and the Voltage in the output of the channel depends of the Variable ALPHA (your control slide!)  that changes from 0% to 100% following this NON LINEAR relation   Vout(Alpha)=120V x (Alpha)2/1000 Also the Director requested tom place the seven lamps (Lamp 1 to Lamp 7) in the configuration presented below. Figure 1 - Diagram of the lamps connected to Channel 1 (Pictured) Figure 2 - Diagram of the lamps connected to Channel 2 (pictured Please answer the questions below: 1) Before you start using the unfamiliar Dimmer PPQQ2020 you decided to make an experiment with the device to better understand how the dimmer work Define the question of your experiment Define the variables of your experiment Define the hypothesis of your experiment

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BJT (Bipolar Junction Transistor)

A BJT is a semiconductor device with 3 terminals that consist of a p-n junction diode that can amplify the signal or current. It is a current-controlled device. The three BJT terminals are base, collector, and emitter. The BJT works with the charge carrier, the two type of carriers in the BJT are holes and electrons, the charge carriers flow by the process of recombination. The signal to be amplifier is generally given as the input at the base terminal and an amplified form of it is available at the collector terminal.