A transistor-oscillator using a resonant circuit with an inductor L (of negligible resistance) and a capacitor C in series produces oscillations of frequency f. If L is doubled and C is changed to 4C, the frequency will be
A
f2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
f4
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
8f
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
f2√2
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution
The correct option is Df2√2 Frequency of LC oscillation= 12π√LC or f1f2=(L2C2L1C1]1/2=(2L×4CL×C]1/2=(8)1/2