MHT CET · Physics · Alternating Current
In LC parallel resonance circuit, choose the wrong statement
- A Resonance occurs when inductive and capacitive reactance is same.
- B At resonance, current is minimum.
- C At resonance, impedance is maximum.
- D At resonance, resonant frequency \(=\sqrt{\mathrm{LC}}\)
Answer & Solution
Correct Answer
(D) At resonance, resonant frequency \(=\sqrt{\mathrm{LC}}\)
Step-by-step Solution
Detailed explanation
Concept based.
Resonance occurs when inductive and capacitive reactance is same.
\(\begin{aligned} & X_C=X_L \\ & \Rightarrow \omega L=\frac{1}{\omega C} \\ & \Rightarrow \omega=\frac{1}{\sqrt{L C}} \\ & \therefore f=\frac{1}{2 \pi \sqrt{L C}}\end{aligned}\)
Resonance occurs when inductive and capacitive reactance is same.
\(\begin{aligned} & X_C=X_L \\ & \Rightarrow \omega L=\frac{1}{\omega C} \\ & \Rightarrow \omega=\frac{1}{\sqrt{L C}} \\ & \therefore f=\frac{1}{2 \pi \sqrt{L C}}\end{aligned}\)
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Physics
- Two spheres \(\mathrm{S}_1\) and \(\mathrm{S}_2\) have same radii but temperatures \(T_1\) and \(T_2\) respectively. Their emissive power is same and emissivity in the ratio 1:4. Then the ratio \(T_1: T_2\) isMHT CET 2024 Medium
- Two spheres each of mass ' \(M\) ' and radius \(\frac{R}{2}\) are connected at the ends of massless rod of length ' \(2 \mathrm{R}\) '. What will be the moment of inertia of the system about an axis passing through centre of one of the spheres and perpendicular to the rod?MHT CET 2023 Medium
- In the following electrical network, the value of \(\mathrm{I}\) is
MHT CET 2021 Medium - A car sounding a horn of frequency 1200 Hz passes a stationary observer. The ratio of frequencies of the horn noted by the observer before and after passing the car is \(7: 5\). If the speed of sound is ' \(V\) ', the speed of the car isMHT CET 2025 Medium
- In the logic circuit diagram, when all the four inputs \(\mathrm{A}, \mathrm{B}, \mathrm{C}, \mathrm{D}\) are one, the outputs \(\mathrm{Y}_1, \mathrm{Y}_2, \mathrm{Y}_3\) are respectively \((1,1,0)\). When all the inputs A, B , C , D are changed to 'zero', the outputs \(\mathrm{Y}_1, \mathrm{Y}_2, \mathrm{Y}_3\) respectively change to
MHT CET 2024 Medium - A coil having an inductance of \(\frac{1}{\pi} \mathrm{H}\) is connected in series with a resistance of \(300 \Omega\). If \(20 \mathrm{~V}\) from a \(200 \mathrm{~Hz}\) source are impressed across the combination, the value of the phase angle between the voltage and the current isMHT CET 2023 Medium
More PYQs from MHT CET
- Which of the following has the maximum penetrating power?MHT CET 2008 Medium
- The approximate value of \(\sqrt[3]{64 \cdot 04}\) isMHT CET 2025 Easy
- The prosthetic group of haemoglobin isMHT CET 2011 Medium
- \(\tan ^{-1} x+\tan ^{-1} y=c\) is the general solution of the differential equationMHT CET 2020 Easy
- Identify the correct sequence of events involved in synthesis of polypeptide during translation?MHT CET 2024 Medium
- A long solenoid carrying a current produces magnetic field B along its axis. If the number of turns per cm are tripled and the current is made \(\left(\frac{1}{4}\right)^{\mathrm{th}}\) then the new value of magnetic field will beMHT CET 2024 Easy