Required Practical: Investigating Magnetic Fields in Wires Aims of the Experiment The overall aim of this experiment is to calculate the magnetic flux density of a magnet This is done by mea...
Motion of a Charged Particle in a Magnetic Field A charged particle in uniform magnetic field which is perpendicular to its direction of motion travels in a circular path This is because the...
Calculating Magnetic Force on a Moving Charge The magnetic force on an isolating moving charged particle, such as an electron, is given by the equation: F = BQv Where: F = magnetic force on ...
Magnetic Flux Density Definition The magnetic flux density B is defined as: The force acting per unit current per unit length on a current-carrying conductor placed perpendicular to the magn...
Fleming's Left Hand Rule The direction of the force on a charge moving in a magnetic field is determined by the direction of the magnetic field and the current Recall that the direction of t...
Magnetic Force on a Current-Carrying Conductor A current-carrying conductor produces its own magnetic field When interacting with an external magnetic field, it will experience a force  ...
A-level生物有两大难点，一是知识太多太杂，需要记忆的内容很多，二是生物涉及的数学部分，也让很多数学底子不太好的同学感到头疼。今天就一起来看看学习A-level生物必须要掌握的数学技能及知识点！ A-level生物...
Required Practical: Charging & Discharging Capacitors Aim of the Experiment The overall aim of this experiment is to calculate the capacitance of a capacitor. This is just one example of...
Capacitor Discharge Equation The time constant is used in the exponential decay equations for the current, charge or potential difference (p.d) for a capacitor discharging through a resistor...
