Answer:
forward voltage triggering
temperature triggering
dv/dt triggering
light triggering
gate triggering
Then turning off;
Turn off is accomplished by a "negative voltage" pulse between the gate and cathode terminals
Explanation:
hope it helps
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Answer:
u will need good car parts and a very well made engine
Explanation:
u need a good engine because if u only work on the outer layer of the car the inner parts will be slow and old and the car will have problems
A system is a linear system if all equations inside the system can be simplified into the form,

aka linear form of a linear equation.
So to sum up, a system is linear if all equations are linear equations.
Hope this helps :)