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Dimensions and Dimensional Analysis

Units and Measurement
Physics
Class 11

Overview

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Revise with Concepts

Dimension of Physical Quantities

ExampleDefinitionsFormulaes

Properties, Uses and Limitations of a Dimensional Analysis

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Related Questions to study

The dimensions of angular momentum/ magnetic moment are

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Write the dimensions of and in the relation:
Where is power, is distance and is time.

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The dimensions of is,(=charge,=voltage,=capacitance,take dimension of current as )

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The dimensions of magnetic field in and (coulomb) are given as

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In the formula , and have dimensions of capacitance and magnetic induction field strength respectively. The dimensions of in system is :

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A spherical liquid drop is placed on a horizontal plane. A small disturbance causes the volume of the drop to oscillate. The time period of oscillation(T) of the liquid drop depends on radius (r) of the drop, density and surface tension(s) of the liquid. Which among the following will be a possible expression for T(where k is a dimensionless constant)?

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The dimension of is(: permittivity of free space, Electric field)

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In terms of potential difference , electric current , permittivity , permeability and speed of light , the dimensionally correct equation(s) is/are

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The flux of magnetic field through a closed conducting loop changes with time according to the equation,. Write the units of and   If the magnitudes of and are and respectively, find the including emf at .

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The dimensions of permittivity are

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