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1
KCET 2022
MCQ (Single Correct Answer)
+1
-0

A solenoid of length $$50 \mathrm{~cm}$$ having 100 turns carries a current of $$2.5 \mathrm{~A}$$. The magnetic field at one end of the solenoid is

A
$$6.28 \times 10^{-4} \mathrm{~T}$$
B
$$1.57 \times 10^{-4} \mathrm{~T}$$
C
$$9.42 \times 10^{-4} \mathrm{~T}$$
D
$$3.14 \times 10^{-4} \mathrm{~T}$$
2
KCET 2022
MCQ (Single Correct Answer)
+1
-0

A circular coil of wire of radius $$r$$ has $$n$$ turns and carries a current $$I$$. The magnetic induction $$B$$ at a point on the axis of the coil at a distance $$\sqrt{3} r$$ from its centre is

A
$$\frac{\mu_0 n I}{8 r}$$
B
$$\frac{\mu_0 n I}{16 r}$$
C
$$\frac{\mu_0 n I}{4 r}$$
D
$$\frac{\mu_0 n I}{32 r}$$
3
KCET 2022
MCQ (Single Correct Answer)
+1
-0

Which of the following statements proves that Earth has a magnetic field ?

A
Earth is a planet rotating about the NorthSouth axis.
B
Earth is surrounded by ionosphere.
C
A large quantity of iron-ore is found in the Earth.
D
The intensity of cosmic rays stream of charged particles is more at the poles than at the equator.
4
KCET 2021
MCQ (Single Correct Answer)
+1
-0

A copper rod $$A B$$ of length $$l$$ is rotated about end $$A$$ with a constant angular velocity $$\omega$$. The electric field at a distance $$x$$ from the axis of rotation is

A
$$\frac{m \omega^2 x}{e}$$
B
$$\frac{m \omega x}{e}$$
C
$$\frac{m x}{\omega^2 l}$$
D
$$\frac{m e}{\omega^2 x}$$
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Physics
Mechanics
Units & Measurement and Dimensions Motion Laws of Motion Circular Motion Work, Energy and Power Center of Mass and Collision Rotational Motion Gravitation Simple Harmonic Motion Fluid Mechanics Elasticity Waves Heat and Thermodynamics
Optics
Ray Optics Wave Optics
Electromagnetism
Electrostatics Current Electricity Capacitor Moving Charges and Magnetism Magnetism and Matter Electromagnetic Induction Alternating Current Electromagnetic Waves
Modern Physics
Atoms and Nuclei Dual Nature of Radiation Semiconductor Devices and Logic Gates
Chemistry
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Some Basic Concepts of Chemistry Atomic Structure States of Matter Thermodynamics Chemical Equilibrium Ionic Equilibrium Liquid Solution Redox Reactions Surface Chemistry Solid State Electrochemistry Chemical Kinetics
Inorganic Chemistry
Periodic Table and Periodicity Chemical Bonding and Molecular Structure Hydrogen and It's Compounds s-Block Elements p-Block Elements d and f Block Elements Metallurgy Coordination Compounds
Organic Chemistry
General Organic Chemistry Isomerism IUPAC Nomenclatures Hydrocarbons Haloalkanes and Haloarenes Alcohol, Phenols and Ethers Aldehyde and Ketone Carboxylic Acids and Its Derivatives Compounds Containing Nitrogen Polymers Biomolecules Chemistry in Everyday Life
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Logarithms Quadratic Equations Sequences and Series Permutations and Combinations Probability Sets and Relations Binomial Theorem Vector Algebra Three Dimensional Geometry Matrices and Determinants Statistics Mathematical Reasoning Linear Programming Complex Numbers
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Calculus
Functions Limits, Continuity and Differentiability Differentiation Application of Derivatives Indefinite Integration Definite Integration Area Under The Curves Differential Equations
Coordinate Geometry
Straight Lines and Pair of Straight Lines Parabola Ellipse Hyperbola
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