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Standard XII
Physics
Introduction to Semiconductors
what is alter...
Question
what is alternating EMF
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Q.
The figure given shows the variation of an alternating emf with time. What is the average value of the emf for the shaded part of the graph?
Q.
What is meant by mean value of A.C? Derive an expansion for mean value of alternating current and EMF.
Q.
The rms value of alternating emf
E
=
(
8
sin
ω
t
+
6
sin
2
ω
t
)
V
is
Q.
An alternating emf of frequency
f
is applied to a series
LCR
circuit. For this frequency of the applied emf.
Q.
The equation of an alternating emf is
V
=
120
sin
(
100
π
t
)
cos
(
100
π
t
)
Volt. The peak value of its emf and its frequency will be
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