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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- 电阻温度依赖性
- Rms值交流电
- 电抗和阻抗
- 相量表示法交流
- 平行板电容器
- 焦耳定律
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- 磁场对载流导线的影响
- 电流密度
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- 导电
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- 类型的发电机
- 类型的电流
- 直流发电机类型
- 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
- 水的电导率
- 导电的液体
Electricity
电磁波
电磁
静电学
能量
- 能量
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- 热能
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- Ev和Joule之间的关系
- 动能和完成的功
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- 能源
- 太阳能和光伏电池
- 动能与动量的关系
- 热量与焦耳的关系
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- 能源考虑
流体
武力
Force
摩擦
万有引力
热
动力学理论
光
- 镜面反射漫反射
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- 光的透射、吸收和反射
- 透明半透明和不透明
- 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
- 衍射和干涉的区别
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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- 动量和惯性之间的差异
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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
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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
- Spherical Mirror Formula
- Resolving Power Of Microscopes And Telescopes
- Refractive Index
- Refraction Of Light
- Refraction Light Glass Prism
- Reflection On A Plane Mirror
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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
- Simple Microscope
Oscillation
Pressure
- Thrust Pressure
- Relation Between Bar And Pascal
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Quantum physics
- Quantum physics
- Rydberg Constant
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Radioactivity
- Relation Between Beta And Gamma Function
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Scalars and Vectors
- Scalars and Vectors
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Scientific Method
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Semiconductors
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Solid Deformation
- Solid State Physics
- Solid Deformation
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- Bulk Modulus Of Elasticity Definition Formula
Sound
- Sound waves
- Timbre
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- Sound Waves Need Medium Propagation
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- Doppler Shift
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- The Human Voice How Do Humans Create Sound With Their Vocal Cord
- Sound Vibration Propagation Of Sound
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- Reverberation
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System of Particles and Rotational Dynamics
Thermal Properties of Matter
- Thermal Properties of Materials
- Thermal Stress
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Thermodynamics
- Statistical Physics
- SI Units List
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- 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
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- 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
能源和工作是以焦耳。通过应用一个牛顿的力超过1米的距离,一个对象是由工作(或能量)。焦耳是产生当一个物体受到的力1 N和移动1米。牛顿·米是用来测量它。准确的等效每次机械力产生的热量。任何电气组件产生的热变化直接平方电流,电阻,和当前的时间流,根据焦耳定律加热。
What is Joule?
焦耳是度量单位能源和工作。工作对象是通过应用一个牛顿的力超过一米的距离。当1 N的力是应用到任何对象和对象移动1米,产品是一个焦耳。它是用牛顿米。每次应用机械力,相当于一个精确的热量。
$ $ mathrm {1: J = 1: N ime 1: m} $ $
Joule s Law of Heating
根据焦耳定律加热,产生的热量在任何电子元件直接与平方变化电流,电阻,电流的持续时间流。
让年代看方程
$$mathrm{P=I^{2} R}$$
这个方程被詹姆斯焦耳发现经验,这意味着他检查一些数据,测量,观察到的现象。测量功率,电流和电阻导致这一结论。因此,这个方程并不是来自数学计算。实证发现,他说,直接的功率耗散电阻变化电流的平方
我们只是意味着电流流经电阻当我们说“功率耗散电阻”。我是通过电阻的电流,它升温。想想这个热量来自一个电阻,周围的空气流动,分散,最终消失。它不从宇宙中消失,但它散射,变成无法使用。根据焦耳,功率耗散电阻正比于电流的平方。方程中,权力是由当前我的平方。
欧姆定律,有趣的是,我们还讨论了在V =红外,还发现了经验。观察现实世界中的数据显示这两个结果。电流通过电阻时产生热量。电阻器年代能量完全转化为热量。焦耳加热的过程是将电能转换为热能。焦耳加热发生在电路中的电阻元件加热。这些方程代表任何电气设备设计背后的理论产生热量,如电动加热器或烤面包机。一个烤面包机包含一个加热元件,当我们按下小设备,它变热。
电力是能源。
$ $ mathrm {P =压裂{能源}{时间}}$ $
$ $ mathrm{能源= ime时间}$ $
和$ mathrm {P =我^ {2}R} $
把权力的价值
$ $ mathrm{能量=我^ {2}:RT} $ $
$ $ mathrm {H =我^ {2}:RT} $ $
H =热量。
Joule Heating Power Equation for AC and DC
根据焦耳定律加热,产生的热量在任何电气部件直接随电流的平方,电阻,电流流动的时间。产品是一个焦耳当1 N的力是应用到任何对象和对象移动1米。它在牛顿·米表示。
$ $ mathrm {P =压裂{能源}{时间}}$ $
$ $ mathrm{能源= ime时间}$ $
和$ mathrm {P =我^ {2}R} $
把权力的价值
$ $ mathrm{能量=我^ {2}:RT} $ $
$ $ mathrm {H =我^ {2}:RT} $ $
H =热量。
Apppcation of Joule s Law of Heating
Electric Fuse
的融合是一个小的导线不高熔点锡合金的生产。电器的保险丝与系列。当电流超过最大价值时,熔丝加热温度高于熔点,并切断电路。钢丝加热的温度变化直接方当前和多维数据集的半径成反比,所以温度是由电流通过电线和它的半径,不管它的长度。其他应用程序是:-
电灯泡
电加热器
电熨斗
电动喷泉等。
Apparatus for measuring the mechanical equivalent of heat
Conclusion
焦耳的能量和测量工作。一个对象可以移动通过应用一个牛顿的力超过一米的距离。当任何物体受到的力1 N和移动1米,一个焦耳。它是用牛顿米。当机械力,完全相当于产生热量。根据焦耳定律加热,产生的热量在任何电气部件直接随电流的平方,电阻,电流流动的时间。在本文中,我们了解了什么是焦耳定律,焦耳定律加热或加热电流的影响,交流和直流电阻加热功率方程,加热、焦耳定律的应用以及一些常见问题。
FAQs
Q1。有哪些变量影响焦耳加热法律?
答:焦耳定律加热状态,产生的热量在导线电流的平方成正比,导线电阻,和当前的时间允许流过电路。
Q2。哪个设备并t随加热焦耳定律吗?
答:电扇不是根据焦耳定律,与其他著名的电熨斗等设备,加热器,灯泡。
第三季。焦耳热可逆的影响?
答:焦耳热效应的是一个永久的现象。也就是说,如果我们供应电流在一个方向一个电阻,电阻将升温。通过切换当前方向,然而,我们无法冷却电阻器。因此,这个过程不能逆转。
第四季度。多少焦耳加热可以理想的绝缘子生产?
答:我们都知道,一个理想的绝缘体有糟糕的导热和导电性能。结果,因为它不导电,没有热量生成。
Q5。焦耳热如何改变电阻变化,正面和负面吗?
答:电压的平方除以电阻决定了焦耳加热。这意味着低电阻和高电压显著增加产生的热量。
Q6。为什么过度电流产生热量?
答:当电流流过电阻元件的电路,产生热量。导体的电阻决定多少热量产生电流流经它。因此,电流产生的热量是不可避免的,因为它流过导体。
迄今为止。电产生热吗?
答:伏通常旅行外的电线和安培。因此,安培将产生热量,因为原子和价电子创建不同级别的阻力,而伏通常不会。但是,你不会感到热上升如果使用电线足够厚的。