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Diode is a active component. Resistor, Inductor and Capacitor are passive components.

Both the BY127 and the 1N4007 are described as general purpose rectifier diodes. They have similar characteristics, except that the BY127 is rated for 0.5A forward current and the 1N4007 is rated for 1A

Ready to use silica gel is blue in colour. When the silica gel has soaked up a lot of moisture, the silica gel turns to pink. Once the silica gel turns pink it cannot adsorb any more moisture. It needs to be regenerated.

A current transformer (CT) is a type of transformer that is used to reduce or multiply an alternating current (AC). It produces a current in its secondary which is proportional to the current in its primary.

The SI unit of magnetic reluctance is AT / Wb (ampere-turns / Weber).

Nothing in the battery world is absolute. The specific gravity of fully charged deep-cycle batteries of the same model can range from 1.270 to 1.305; fully discharged, these batteries may vary between 1.097 and 1.201. Temperature is another variable that alters the specific gravity reading

Admittance is defined as

Y=1/Z,
where

Y is the admittance, measured in siemens
Z is the impedance, measured in ohms

Electrolytic Aluminium capacitors = 200 -1600V

1N is stands for American standard semiconductor (Generic name) with ONE JUNCTION. 400X Series like 4001,4002 to 4007 is indicates the voltage, current and power rating of the diodes. 1N= Means One Junction between P-type and N-Type. 400= Means Serial number of the rectifier.

Once the magnetic field has been calculated, the magnetic force expression can be used to calculate the force. The direction is obtained from the right hand rule. Note that two wires carrying current in the same direction attract each other, and they repel if the currents are opposite in direction.

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