Questions
An L – C circuit has a natural frequency f. If the capacitance and inductance are both doubled, the frequency would become
a
f2
b
2f
c
f4
d
None of these
detailed solution
Correct option is A
f=12πLC f'=12π2L×2C=14πLC=f2 .Talk to our academic expert!
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In the series LCR circuit as shown in figure, the heat developed in 80 seconds and amplitude of wattless current is:
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