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What devices use water to operate?
HydroElectric generators (think of Hoover Dam) , water wheel , steam engines by heating the water ,
What is the difference between electrical and mechanical devices?
Electrical degrees and mechanical degrees in dc motors are related by the equation: Deg(elec) = (Number of Poles/2) *(Deg(mech))
What size resistor to drop 3 volts to 2.4 to use an LED?
LEDS are diodes and will operate correctly only when the voltage is sufficient and also the current is sufficient. So i cannot solve it correctly since i have no info on the current. Generally a led can be safely conduct if the current is around 0.020 amps or 20ma so 3-2.4=.6v .6/.02= 30 ohms.
Why low power VLSI technology is preferredover VLSI technology?
Low power VLSI is preferred over VLSI.It is because of the following reasonsIt consumes less power i. e. the power consumption is lowThe power dissipation is also lowmost of the modern devices need to operate at low powerComplex systems can be designed with reliability as the power consumption is low.We use modern electronic devices like mobiles ans robotics. These are generally compact and movable. Hence, they operate with a battery rather than power connection. Hence, we need low power operation.
What is reactive current?
current that does't use in power measurement is called reactive current.
