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For the following questions answer them individually
LED lamp have a general life expectancy of
Cutting plier use for electrical work must have
The unit of luminousfluxis
A zero watt lamp consumes
About 5 to 7 W power
About 15 to 20 W power
About 25 to 30 W power
A DC generator used for AC welding should have ....../
None of these
The welding electric circuit is ......
Through cables only
Direct resistance heating is used in
ll option are correct
The main drawbackof resistance welding is
High initial as well as maintenance cost.
Difficult shapes and sections cannot be welded.
Only similar metals can be welded.
The process of adding, impurities to a semiconductor is known as ......
In a p-n junction the potential barrier is due to the charges on either side of the junction. These charges are
Both majority as well as minority carriers
fixed donor and acceptor ions
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