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- The work done against the induced emf in building up the current from 0 to I is
W = {tex}\int d W=\int \mathfrak{E} I d t=\int L \frac{d I}{d t} I d t=\int_{0}^{I} L I d I=\frac{1}{2} L I^{2}{/tex}
The magnetic energy stored in the solenoid is
UB = W = {tex}\frac{1}{2} L I^{2}=\frac{1}{2} L\left(\frac{B}{\mu_{0} n}\right)^{2}{/tex} {tex}\left[\because B=\mu_{0} n I\right]{/tex}
= {tex}\frac{1}{2}\left(\mu_{0} n^{2} A l\right)\left(\frac{B}{\mu_{0} n}\right)^{2}{/tex} {tex}\left[\because L=\mu_{0} n^{2} A l\right]{/tex}
{tex}U_{B}=\frac{1}{2 \mu_{0}} B^{2} A l{/tex} - The magnetic energy stored per unit volume of the solenoid is
{tex}u_{B}=\frac{U_{B}}{V}=\frac{U_{B}}{A l}{/tex} [Here V is the volume that contains flux]
[Here V is volume that contains flux]
or {tex} u_{B}=\frac{B^{2}}{2 \mu_{0}}{/tex} ....(i)
We know that the electrostatic energy stored per unit volume in a parallel plate capacitor is
{tex}u_{E}=\frac{1}{2} \varepsilon_{0} E^{2}{/tex} .....(ii)
In both the cases energy is proportional to the square of the field strengths. Eqs. (i) and (ii) are general and valid for any region of space in which a magnetic field or/and an electric field exist.
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Planning is a way to systematize, direct and organize the events or competitions and extract the advantage and benefit of the available resources.
Objectives of planning:
- To keep control over all activities which suggests that planning & control are connected with each other.
- it also helps in keeping a good control in organizing a tournament.
- Reduce the chances of mistake
- It suggests programmes can be conducted with proper coordination with least mistakes rather focusing on success.
- To promote innovative ideas.
- To provide direction towards the goal
- To reduce undue pressure
- To provide proper co-ordination among the committees.
- To have good control over all the activities.j.To improve efficiency.
- To reduce the chances of mistakes.
- To increase the creativity.
- To enhance the sports performance.
- To protect existing facilities.
- Provide new facilities to meet demand.
- Helps in decision making.
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Klinefelter syndrome is one of the genetic disorders in males. It occurs when a male baby is born with more than required or extra X chromosomes. Many males consist of one X and one Y chromosome and an extra chromosome can cost a male with physical traits which are inappropriate for males.
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Significant and continuous rise in agricultural production with the use of fertilizers, HYV seeds and irrigation facilities is known as Green Revolution.
At the time of independence, about 75% of the country's population were dependent on agriculture. The productivity in agricultural sector was very low because of the use of old technology and absence of the required infrastructure for the majority of the farmers.
The spread of green revolution technology enabled India to achieve self-sufficiency in food grains. It helped in improving the living standard of farmers. Also, it helped in creating marketable surplus of food grains, especially wheat and rice.
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Sia ? 4 years, 11 months ago
Density of Population:
Distribution of Population: Population growth refers to the change in number of people living in a territory during a specific period of time. This change may be positive or negative. It is usually expressed in terms of percentage or absolute numbers.
Gorwth of Population: Population growth refers to the change in number of people living in a territory during a specific period of time. This change may be positive or negative. It is usually expressed in terms of percentage or absolute numbers.
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