Skip to main content

ELECTRICAL PENDULUM

   Just a pair of metal plates separated by a small distance is called "capacitor".  It can store electric field(charges) and release it.  
      A coil of wire can create magnetic field when electric current is passed through it.  Magnetic field depends on the strength of the current.  A coil of conductor is called an "inductor".  
     Let us connect a battery for some time to the capacitor till it fully charges up.  Next we will connect the capacitor and the inductor in parallel.  Now the actions starts.  
  •      The capacitors slowly discharges, current flows in the circuit and magnetic field builds up in the coil.

  •      When the capacitor is fully discharged, the magnetic field of the coil starts to collapse and the current flows(Faraday's law)  in the same direction.  At the same time the capacitor is charged up in the opposite direction.

  •      When the coil fully loses magnetic field, the capacitor starts to send the current in the opposite direction.  The cycle goes on.

     Thus we get alternating current(sinusoidal current) from the circuit.  The pendulum oscillates by  alternating between kinetic and potential energy.  Here the current oscillates by alternating between electric and magnetic energy.
     Two very simple components create electric oscillations.  It is a thing of wonder.
    This circuit is also called tank circuit(because it stores up energy) and it is a basic and an important circuit in electronics.
 Note:  The electric oscillations will be slowly damped due to natural resistance in the circuit.  



Labels

Labels:

Comments

Post a Comment

Popular posts from this blog

Your heart -you do not know

  Size and Location: The human heart is roughly the size of a clenched fist and is located slightly to the left of the center of the chest. Despite its relatively small size, the heart plays a crucial role in pumping blood throughout the entire body. Heartbeat Variability: The heart does not beat at a constant rate. The interval between heartbeats can vary, and this variability is considered a sign of a healthy heart. Factors such as breathing, emotions, and physical activity influence the heartbeat. Electrical Conduction: The heart's contractions are controlled by electrical impulses. The sinoatrial (SA) node, often called the "natural pacemaker," generates electrical signals that regulate the heartbeat and coordinate the pumping of blood. Blood Pumping Capacity: On average, the human heart pumps about 2,000 gallons (or 7,570 liters) of blood each day. Over a lifetime, this amounts to pumping enough blood to fill several Olympic-sized swimming pools. Heart Chambers and V...
Post a Comment
Read more

THE WORK HORSE "="

    One cannot think of  a mathematical step without 'is equal to ' .  It balances right hand side and left hand side.  It aids simplification and manipulation of a mathematical expression. example: 2(A+B)  = C 2A+2B  = C         2A = C-2B           A = C-2B/ 2   In an electronic calculator,  the pressing of ' = " sign executes an asthmatic expression  or simply calculates.       In computer languages, it plays very important role.                                                                 A = B   When a computer looks at this expression, the value stored in the location named B is just transferred to the storage named A .  After execution both A and B will have the same value an...
Post a Comment
Read more

How does your smart phone detect motion, steps, rotation, and location?

 How it works-1  An accelerometer in a smartphone is a microelectromechanical system (MEMS) device that measures acceleration and tilt. It works by detecting changes in motion by measuring the vibration or acceleration of the device. The accelerometer consists of a small mass suspended on a spring inside a sealed chamber. When the device is subjected to acceleration, the mass moves relative to the device, causing a change in capacitance that can be measured and processed by the smartphone's hardware. The accelerometer measures acceleration in three dimensions (x, y, and z) and provides data that the smartphone's software can use to determine the device's orientation, detect motion, and track changes in velocity and acceleration. The accelerometer is used for a variety of purposes in a smartphone, including screen rotation, motion tracking for games and fitness apps, and detecting the position of the device for navigation and location services. Additionally, it can be used t...
Post a Comment
Read more