COMPLETE EXPERIMENTS ON ELECTRICITY AND MAGNETISM  

在这个实验中，对库仑定律进行了研究。该装置允许通过实验推导出库仑公式：两个带电球体（电荷量为q1和q2）的库仑力F的确定是分析的中心。球体被认为是点电荷；球体的中心彼此之间的距离是r。 本实验的以下部分进行了讨论： 1. 球体的电荷量q1和q2与施加的高电压的关系。 2. 在球体之间有固定距离的情况下，库仑力F对电荷量q1和q2的依赖性r ⇒ F ∝ q1; F ∝ q2 3. 在球体的固定电荷量q1和q2的情 ... 更多

Objective: Measure the electric field in a plate capacitor using the electric field meter The electric field meter can be used to measure the electric field within a plate capacitor directly. In this experiment a rotating sectored disc ... 更多

Objective: Measure the electrostatic voltage as a function of the distance between the plates To increase the distance between the charged plates of a plate capacitor after removing their external conne ctions, mechanical work must be ... 更多

目的：测定各种材料的相对介电常数 任何绝缘或导电不良的材料，当电场穿过时，缺乏自由载流子可以起到电介质的作用。所述材料可以是气体、液体或固体。电介质极化的电场。极化可以诱导（位移）极化和取向极化。在实验中，施加在平板电容器上的电压是在有或没有纸板或透明电容器板之间插入的透明板测量的。这些中间材料的介电常数是从测得的电压的比率获得。 更多

Objective: Demonstrate the electric current generated by the motion of charged droplets of water Electric current arises due to an amount of charge being transported during a given interval of time. A flow of current can be simply illustrated ... 更多

Objective: Demonstrate the electric current generated by the motion of charged droplets of water Electric current arises due to an amount of charge being transported during a given interval of time. A flow of current can be simply illustrated ... 更多

Objective: Determine the electrical conductivity of copper and aluminium Electrical conductivity of a material is highly dependent on the nature of the material. It is defined as the constant of proportionality between the current density ... 更多

Objective: Determine the value of certain resistances An arrangement in which two voltage dividers are connected in parallel and connected to the same DC voltage source can be used to obtain the values of certain resistors. The first voltage ... 更多

Objective: Verification of Ohm’s law In simple electrical conductors, the current I which passes through the conductor is proportional to the applied voltage U. The constant of proportionality, the ohmic resistance R, is dependent ... 更多

Objective: Measure voltage and current in circuits featuring resistors in series and in parallel Kirchhoff’s laws are of key importance for calculating current and voltage in various parts of a circuit with multiple branches. In ... 更多

Objecive: Measure the voltage and current for a voltage divider with and without a load A voltage divider in its simplest form consists of a pair of resistors connected in series, whereby the total voltage across the two of them is divided ... 更多

  实验目的：测定磁场中的载流导体所受的力。 实验包括测定水平悬挂于一对垂直金属丝（像一个“摆”）下方，并处于一个磁场中的载流铜 棒的洛伦兹力。当电流接通时，“摆”偏离垂直位置，并且可通过偏转的角度测定洛伦兹力的 大小。当电流通过铜棒，磁场强度和导体在磁场中的有效长度就会发生变化，并对这个效应进 行测定。 更多

Objective: Measurement of the force exerted on a current-carrying conductor located inside a magnetic field The electric balance is based on André-Marie Ampères’ experiments on electric current. It measures the ... 更多

在实验中： Biot-Savart定律，不同半径R的载流导体环的磁通密度B的轮廓和直导线的磁通密度被确定和讨论。   磁场传感器的位置，即到导体环平面的距离z，以及磁通密度B都是同时测量的。这是通过远程控制定位系统PS400（文章编号1023414）和磁场传感器（文章编号1021798）实现的。获得的数字数据在Coach7软件中被自动处理和可视化，因此，当传感器通过磁场时，磁通密度B(z)的剖面图会同时显示。   ... 更多

Objective: Determine the magnetic field generated by coils of various lengths The magnetic flux density inside a long cylindrical coil is directly proportional to the current through the coil and how close together the coil windings are ... 更多

Objective: Determine the horizontal and vertical components of the earth’s magnetic field This experiment involves determining the inclination and magnitude of the earth’s magnetic field as well as its horizontal and vertical components ... 更多

Objective: Generating a voltage pulse in a conducting loop by the motion of a permanent magnet When a permanent bar magnet is allowed to fall in succession through a set of identical induction coils connected in series, a voltage is induced ... 更多

Objective: Measure the induced voltage in a conductor made into a loop as it moves through a magnetic field The change in magnetic flux that is needed to induce a voltage in a conductor loop can be caused by a movement of the loop. Such ... 更多

Objective: Measuring the voltage induced in an induction coil If a closed conductor loop with N windings is located in a cylinder coil through which an alternating current flows, then an electrical voltage is induced by the variable magnetic ... 更多

Objective: Demonstrate and investigate how an eddy-current brake works In a metal disc moving through a uniform magnetic field, eddy currents get induced. The uniform magnetic field exerts a force due to these currents that causes the disc ... 更多

Objective: Make measurements on a transformer with and without load Transformers are devices based on Faraday’s law of induction which are used for converting voltages. One major use is for the transmission of electrical power over large ... 更多

Objective: Investigation of how the voltage across a capacitor changes over time when the capacitor is charging or discharging In a DC circuit, current only flows through a capacitor at the point in time when the power is turned on or off ... 更多

Objective: Determine the charging and discharging times The discharge curve of a capacitor is to be derived by measuring the times taken for certain voltages to be reached to obtain sample points. The charging curve is to be measured ... 更多

Objective: Determine the charging and discharging times The discharge curve of a capacitor is to be derived by measuring the times taken for certain voltages to be reached to obtain sample points. The charging curve is to be measured in ... 更多

Objective: Determine the impedance of a capacitor as a function of capacitance and frequency Any change in voltage across a capacitor gives rise to a flow of current through the component. If an AC voltage is applied, alternating current ... 更多