Question:
A series LCR circuit driven by $300 \mathrm{~V}$ at a frequency of $50 \mathrm{~Hz}$ contains a resistance $\mathrm{R}=3 \mathrm{k} \Omega$, an inductor of inductive reactance $X_{L}=250 \pi \Omega$ and an unknown capacitor. The value of capacitance to maximize the average power should be : $\left(\right.$ Take $\left.\pi^{2}=10\right)$
$4 \mu \mathrm{F}$
$25 \mu \mathrm{F}$
$400 \mu \mathrm{F}$
$40 \mu \mathrm{F}$
Correct Option: 1
Solution:
For maximum average power
$\mathrm{X}_{\mathrm{L}}=\mathrm{X}_{\mathrm{C}}$
$250 \pi=\frac{1}{2 \pi(50) \mathrm{C}}$
$\mathrm{C}=4 \times 10^{-6}$
Option (1)
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All Study Material
- JEE Main
- Exam Pattern
- Previous Year Papers
- PYQ Chapterwise
- Physics
- Kinematics 1D
- Kinemetics 2D
- Friction
- Work, Power, Energy
- Centre of Mass and Collision
- Rotational Dynamics
- Gravitation
- Calorimetry
- Elasticity
- Thermal Expansion
- Heat Transfer
- Kinetic Theory of Gases
- Thermodynamics
- Simple Harmonic Motion
- Wave on String
- Sound waves
- Fluid Mechanics
- Electrostatics
- Current Electricity
- Capacitor
- Magnetism and Matter
- Electromagnetic Induction
- Atomic Structure
- Dual Nature of Matter
- Nuclear Physics
- Radioactivity
- Semiconductors
- Communication System
- Error in Measurement & instruments
- Alternating Current
- Electromagnetic Waves
- Wave Optics
- X-Rays
- All Subjects
- Physics
- Motion in a Plane
- Law of Motion
- Work, Energy and Power
- Systems of Particles and Rotational Motion
- Gravitation
- Mechanical Properties of Solids
- Mechanical Properties of Fluids
- Thermal Properties of matter
- Thermodynamics
- Kinetic Theory
- Oscillations
- Waves
- Electric Charge and Fields
- Electrostatic Potential and Capacitance
- Current Electricity
- Thermoelectric Effects of Electric Current
- Heating Effects of Electric Current
- Moving Charges and Magnetism
- Magnetism and Matter
- Electromagnetic Induction
- Alternating Current
- Electromagnetic Wave
- Ray Optics and Optical Instruments
- Wave Optics
- Dual Nature of Radiation and Matter
- Atoms
- Nuclei
- Semiconductor Electronics: Materials, Devices and Simple Circuits.
- Chemical Effects of Electric Current,
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