Question Two: 5marks Figure 7.146 shows a circuit for setting the length of time voltage is applied to the electrodes of a welding machine. The time is taken as how long it takes the capacitor to charge from 0 to 8 V. What is the time range covered by the variable resistor? Page 1 of 3 100kΩ to 1 ΜΩ w 12 V 2 F Welding control unit Electrode Figure 7.146
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Question Two: 5marks Figure 7.146 shows a circuit for setting the length of time voltage is applied...
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