Atoms
Celestial Bodies
- Space Travel Equipment
- Stars
- Rotation and Revolution
- Relation Between Escape Velocity And Orbital Velocity
- Dwarf Planets
- Difference Between Solar Eclipse And Lunar Eclipse
- Difference Between Equinox And Solstice
- The Escape Velocity Of Earth
- Solar System
- Difference Between Stars And Planets
- Difference Between Asteroid And Meteoroid
- Constellations
Circuits
电路 (diàn lù)
电路 (Diànlù)
电路
通信系统Pdf
二极管
地球科学
电荷
电
- 类型的齿轮
- 电子产品在日常生活中
- 类型的汽车
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- 类型的发电机
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- Torque On Dipole
- 电流的热效应
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- 静电
- 电阻率不同的材料
- 电场的物理意义
- 介电常数和磁导率
- 电能和权力
- 电流在导体
- 电动汽车
- 位移电流
- 电阻与电阻率之间的差异
- 电动机和发电机之间的区别
- 接地和接地之间的区别
- 电流线圈
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Electricity
电磁波
电磁
静电学
能量
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流体
武力
Force
摩擦
万有引力
热
动力学理论
光
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- 阳光白色
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- 粒子自然光光子
- 真实图像与虚拟图像的区别
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磁性
运动
- 运输历史记录
- 速度-时间图
- 旋转动能
- 刚体和刚体动力学
- 扭矩和速度之间的关系
- 粒子的直线运动
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- 相对速度
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- 速度和速度之间的区别
- 动力学和运动学的区别
- 连续性方程
- 线性动量守恒
自然资源
核物理学
光学
Optics
- Reflection of Light and Laws of Reflection
- Concave Lens
- Total Internal Reflection
- Thin Lens Formula For Concave And Convex Lenses
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- Refractive Index
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- Refraction Light Glass Prism
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- Rainbow
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- Difference Between Simple And Compound Microscope
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- Concave Convex Mirror
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- The Lens Makers Formula
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Oscillation
Pressure
- Thrust Pressure
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Quantum physics
- Quantum physics
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Radioactivity
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Scalars and Vectors
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Scientific Method
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Semiconductors
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Solid Deformation
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- Bulk Modulus Of Elasticity Definition Formula
Sound
- Sound waves
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- Doppler Shift
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- Doppler Effect
System of Particles and Rotational Dynamics
Thermal Properties of Matter
- Thermal Properties of Materials
- Thermal Stress
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- Thermal Conductivity Of Metals
Thermodynamics
- Statistical Physics
- SI Units List
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- Reversible Irreversible Processes
- Carnots Theorem
- Temperature
- Kelvin Planck Statement
- Difference between Isothermal and Adiabatic Processes
Units and measurements
- Density of Air
- The Idea Of Time
- Difference Between Pound And Kilogram
- Difference Between Mass And Volume
- Dimensional Analysis
- Density Of Water
- Time Measurement
- Standard Measurement Units
- Relation Between Kg And Newton
- Relation Between Density And Temperature
- Difference Between Mass And Weight
Waves
- Space Wave Propagation
- Sharpness Of Resonance
- Relation Between Group Velocity And Phase Velocity
- Relation Between Amplitude And Frequency
- Periodic Function
- P Wave
- Destructive Interference
- Transverse Waves
- Travelling Wave
- Standing Wave Normal Mode
- S Waves
- Relation Between Frequency And Velocity
- Reflection Of Waves
- Phase Angle
- Period Angular Frequency
Work, Energy and Power
- Derivation Of Work Energy Theorem
- Conservation Of Mechanical Energy
- Relation Between Work And Energy
- Destruction Caused Cyclones
Physics Experiments
- Determine Resistance Plotting Graph Potential Difference versus Current
- To find the weight of a given Body using Parallelogram Law of Vectors
- To study the variation in volume with pressure for a sample of air at constant temperature by plotting graphs between p and v
- To measure the thickness of sheet using Screw Gauge
- To find the value of V for different U values of Concave Mirror find Focal Length
- To find the Surface Tension of Water by Capillary Rise Method
- To find the Resistance of given wire using Metre Bridge and hence determine the Resistivity of its Material Experiment
- Determine Mass of Two Different Objects Using Beam Balance
- Tracing the path of the rays of light through a glass Prism
- Tracing path of a ray of light passing through a glass slab
- Tornado Bottle
- To find image distance for varying object distances of a convex lens with ray diagrams
- To find force constant of helical spring by plotting a graph between load and extension
- To find focal length of concave lens using convex lens
- To find effective length of seconds pendulum using graph
- To find downward force along inclined plane on a roller due to gravitational pull of the earth and its relationship with the angle of inclination
- To draw the IV characteristic curve for p n junction in forward and reverse bias
- To determine Young’s modulus of elasticity of the material of a given wire
- To determine the internal resistance of a given primary cell using a potentiometer experiment
- To determine the coefficient of viscosity of given viscous liquid by measuring terminal velocity of given spherical body
- To determine specific heat capacity of given solid by method of mixtures
- To determine radius of curvature of a given spherical surface by a Spherometer
- Scope and Excitement of Physics
- Rocket science
- Relationship between frequency and length of wire under constant tension using Sonometer
- To determine equivalent resistance of resistors when connected in series and in parallel
- To convert the given galvanometer of known resistance and figure of merit into a voltmeter of desired range and to verify the same experiment
- To determine minimum deviation for given prism by plotting graph between angle of incidence and angle of deviation
- To compare the emf of two given primary cells using potentiometer experiment
Introduction
一般来说,我们看到当我们把铁钉在某种距离磁铁,它吸引了。为什么是这样呢?我们看到,某些材料有能力吸引材料向自己。这些材料是吸引磁铁周围的磁场称为磁场。由于电荷产生的电场也像一块磁铁产生磁场。周围的磁场还创建了电线,电流。
What is a Magnet?
这是一块金属吸引某些类型的材料本身。有一定的空间区域周围的磁铁磁场的影响可以被感觉到。如果一个铁钉位于磁场,它会经历一个吸引力,如果是远远超出磁场,它将不会被吸引了。条形磁铁的一种形式是一个磁铁的形状是长方形的,有一个磁场。
北极和南极是一块磁铁的两极。磁铁周围创建一个字段。如果我们把任何磁铁的南极与另一个的南极,他们互相排斥。这意味着像磁极互相排斥的。同样,南、北两极相互吸引。这意味着与两极相互吸引。有三个主要类型的磁铁。
临时磁铁的磁场时删除对象失去磁性的影响。
永久磁铁磁化后不要轻易失去磁性的影响。
电磁铁时使用一个强大的磁铁是必需的。
并不是所有的材料都被磁铁吸引。材料如塑料、玻璃、橡胶并不是一块磁铁,吸引非磁性材料。材料如钉子、螺丝、棒等吸引磁铁,磁性材料。
What is a Magnetic Field?
有些材料如磁铁一般吸引其他材料。这吸引力是由于一个字段在磁铁吸引的材料放置在某个距离磁铁。总是一个磁场与磁铁材料磁效果。
在磁铁磁场区域内哪些对象有磁力的感觉。大小和方向。它是由 。
Fig:1 Magnetic field of pnes
它是被吸引的磁场。这些都是虚构的线可以连接朝鲜南极。行显示方向从n极s极外的条形磁铁和s极n极。这些线不相交。如果我们画一个切线上的一个点,它给字段的方向沿着这一点。单位面积上的电场线的总数被描述为字段的大小。
同时,磁场是由运动电荷。电流的导体周围地区有一个领域原有材料。
Fig:2 Magnetic field around a conductor
Right-Hand Rule
这条规则用于确定直导线周围的磁场的方向携带电流。要理解这个规则首先我们需要了解电流产生磁场。
Fig:3 Current flow through a conductor
在AB线,磁线由于载流导体形成同心圆,和中心圈躺在钢丝。如图,我们有一个直导线AB,通过水平纸板上。线的两端AB与电池相连。当开关打开之后,当前通过钢丝AB,周围产生磁场线,圆形。线的作用是找到附近的一个指南针产生的磁场的方向。确定导线的磁场的方向给出了这一规则。
Fig:4 Right-hand rule
在右手拇指规则,拇指显示当前的方向流经导线和e手指的方向导线周围的磁场线。这意味着周围存在磁场线的形式一个圆形形状。
所以我们得出结论,在导线中电流的方向向上的方向流动,磁场是逆时针如果电流的方向在下行方向,然后磁场在 顺时针方向。
Experiment to Demonstrate the Effect of a Magnet on a Current-Carrying Wire
一个实验进行中,如果一个直导线载有电流和磁罗经针被放置在电线附近,它显示了一些偏差。所以它给两个结论
当当前线增加,增加字段的大小产生的线本身。
当从线点的距离增加,减少的大小字段中由于电流通过电线。
1820年,观察电流的磁效应汉斯•克里斯蒂安•奥斯特。
Fig:5 Experimental set-up to show the effect of a magnet on a current-carrying wire
在一个实验中,奥斯特把一个简单的电路和连接电池的电流流过电路和他把附近的罗盘针电路。现在他发现磁罗经针显示偏转当电流通过电线。他又把同一磁针远离电线。现在他观察到的挠度下降甚至相同数量的电流通过电线。
所以他得出结论,接近针的偏转。他还观察到,当电流通过电路增加挠度增加,同样当减少电流电路挠度降低了。
Conclusion
磁铁总有两极。周围地区的磁铁磁力是经历了被称为磁场。力,可以感受到区域内的磁场磁力。同时,一线载有电流像一个磁铁。电流和磁场的方向可以用右手法则。
FAQs
Q1。写任何两个磁铁的使用。
Ans.
指南针的方向
在汽车
Q2。你对这个词的理解电磁什么?
答。圆柱绝缘的身体(其长度大于它的直径),其中包含许多圆形的线圈的绝缘铜线称为电磁。
第三季。有必要对磁场接触材料吸引他们?
答,没有。磁性在距离定义,磁铁工作不需要接触物体的吸引力。
第四季度。在磁场中,导体由于磁场力的经历。州力的方向所依赖的因素。
Ans.
电流方向穿过导体。
通过导体创建领域的方向。
Q5。磁场最强的极限是什么?
答,没有基本的磁场强度的限制。