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Standard X
Physics
Electric Power
what is wattl...
Question
what is wattless current and choke coil?
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Q.
Give the working principle of choke coil. Explain the importance of Walters current in choke coil.
Q.
If
R
and
L
are resistance and inductance of a choke coil and
f
is frequency of current through it, then average power of the choke coil is proportional to
Q.
What is a choke coil
Q.
When a choke coil carrying a steady current is short circuited, the current in it decreases to
β
(
<
1
)
times its initial value in a time
T
. The time constant of the choke coil is
Q.
The impedance of a choke coil is
25
Ω
and its reactance is
24
Ω
. The resistance of the choke coil is
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