CUET · PHYSICS · PYQ PAPER 2023
In a series LCR circuit, the voltage across \(R\) is \(200 V, C=5 \mu F\), and \(R=2 k \Omega\). The resonant frequency \(\omega\) is \(1 0 0 ~ r a d / s\). At resonance, the voltage across \(L\) is:
- A 250 V
- B 200 V
- C 500 V
- D 100 V
Answer & Solution
Correct Answer
(B) 200 V
Step-by-step Solution
Detailed explanation
\(I = V_R / R\) \(I = 200 V / (2 \times 10^3 \Omega) = 0.1 A\) \(X_C = 1 / (\omega C)\) \(X_C = 1 / (100 \text{ rad/s} \times 5 \times 10^{-6} F) = 2000 \Omega\) \(X_L = X_C = 2000 \Omega\) \(V_L = I X_L\) \(V_L = 0.1 A \times 2000 \Omega = 200 V\)
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
- A plane E-M wave of frequency 48 MHz travels in free space along the positive x-direction. At a particular point in space and time \( \vec{E} = 10.2\hat{j} \text{ V/m} \). The corresponding magnetic field \( \vec{B} \) at that point will be:CUET 2023 Medium
- A carrier wave of peak voltage 24 V is used to transmit a message signal. What should be the peak voltage of the modulating signal in order to have a modulation index of 70% ?CUET 2023 Easy
- The energy required to remove an electron from the inner most orbit of the hydrogen atom to a distance far away from its nucleus isCUET 2025 Medium
- Biot-Savart law indicates that the moving electrons (velocity \(\vec{v}\)) produce a magnetic field \(\vec{B}\) such that:CUET 2023 Easy
- In the circuit diagram shown in the figure, the resistance \( R_1 = 10 \, \Omega \), \( R_2 = 15 \, \Omega \) and E= 20 V. When the switch S is closed, the ratio of \( i_1 \) to \( i_3 \) will be:
CUET 2025 Easy - Which of the following statement are correct ?
A. Magnetisation of a sample is equal to its magnetic moment per unit volume.
B. For measuring currents, the galvanometer has to be connected in parallel in the circuit.
C. In an ideal toroid the coils are circular.
D. In larger the number of field lines crossing per unit area, the stronger is the magnitude of magnetic field.
E. The currents flowing in the same direction attract each other.
Choose the correct answer from the options given below :CUET 2023 Medium
More PYQs from CUET
- \(\int \frac{x}{(x-1)(x-2)} d x\) is equal to (where C is a constant of integration)CUET 2025 Easy
- Arrange the following structures involved in embryogenesis in the correct sequence.
(A) Zygote
(B) Blastocyst
(C) Blastomeres
(D) Morula
Choose the correct answer from the options given below:CUET 2023 Medium - The major product formed when acetanilide undergoes bromination in presence of acetic acid is:CUET 2025 Medium
- Let \(\vec{a}=\hat{i}+2 \hat{j}+3 \hat{k}, \vec{b}=-\hat{i}+2 \hat{j}+\hat{k}, \vec{c}=3 \hat{i}+\hat{j}\) be three vectors. If \((\vec{a}+\lambda \vec{b})\) is perpendicular to \(\vec{c}\), then the value of \(\lambda\) isCUET 2025 Hard
- Suppose that A, B and C are matrices of order \(m \times n, n \times 5\) and \(5 \times q\) respectively. The restriction on m, n and q so that AB - BC is defined areCUET 2025 Medium
- Which one of the following is the cathodic reaction in a fuel cell?CUET 2023 Hard