Why does the overall resistance of a circuit decrease as the resistors are connected in parallel? in order for the voltage to be constant on all parallel paths, it is…
What is a transformer? a transformer is an electrical device that transfers electrical energy between two or more circuits by electromagnetic induction. commonly, transformers are used to increase or decrease…
Why does the BJT Fabrication process less used and more costly than Mosfet? A few years ago, bipolar transistors were bigger, harder to manufacture and their circuits tended to use…
How do laser diodes work? basic recipe for laser diode: 1. medium gain cleaved mirrors 3 electrodes 4. DC power source 5. packaging the gain medium is a direct band…
Are resistors with high tolerance ratings better or worse than those with low tolerance ratings? depends on the application and what is required generally good enough for the intended purpose…
If the resistor converts energy to heat then are you wasting energy whenever you use a resistor? I will not call it a “waste” I will call it a loss….
What is a neutral wire? For any circuit to work, there must be a complete circuit from the power supply to the load (light, appliance, heater, etc.) and the power…
How do capacitors go bad? previous s did not mention age and heat. both dry electrolytes. bulbs are particularly prone to this because they are manufactured at low prices. my…
Why do capacitor leaks? there is no perfect insulation and the capacitor has some conductivity inside. which acts as a great resistance to shunt and leads to current leakage it…
Why is the voltage across resistors on an experiment slightly different from the calculations? the last band of the resistor is the load or + or – of the resistor,…