A laminated steel ring is wound with 3000 turns. When the magnetism current varies between 7 and 9 A, the magnetic flux varies b
1 answer:
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Answer:
47.91 sec
Explanation:
it is given that
at t=0 velocity =0 ( as it is given that it is starting from rest )
we have to find time at which velocity will be 3.3
we know that
integrating both side
---------------eqn 1
at t=o it is given that v=0 putting these value in eqn 1 c=0
so
when v= 3.3
t=
=47.91 sec
Answer:
0.0659 A
Explanation:
Given that :
( saturation current )
at 25°c = 300 k ( room temperature )
n = 2 for silicon diode
Determine the saturation current at 100 degrees = 373 k
Diode equation at room temperature = I = Io
next we have to determine the value of V at 373 k
q / kT = (1.6 * 10^-19) / (1.38 * 10^-23 * 373) = 31.08 V^-1
Given that I is constant
Io = = 0.0659 A