You can reduce the resistance in a circuit by the following methods: By adding a resistance in parallel Replacing resistance with a higher... View Article
Yes, permanent magnets produce their own magnetic field which is always present and it cannot be turned on or off. Permanent magnets cause force... View Article
When an electric field comes in contact with a magnetic field, electromagnetic waves are formed. The electric field and magnetic field of an... View Article
Biot-Savart’s law is an equation that gives the magnetic field produced due to a current carrying segment. To know the magnetic field produced... View Article
When a force is applied to a moving object, there is no deacceleration therefore, the linear speed remains constant. But, the velocity vector... View Article
The magnetic force on a current-carrying wire is perpendicular to both the wire and the magnetic field with direction given by the right hand rule.... View Article
One of the most basic and important laws of electric circuits is Ohm’s law. The law states that the voltage across a conductor is directly... View Article
Electromagnetic waves do not need a medium to propagate, they can pass through vacuum easily which is a near vacuum. Electromagnetic waves spread... View Article
This question can be answered by the basics of special relativity and electrostatics. An objet occupies less space when it is moving than when it... View Article
Light is a wave made of time-dependent electric and magnetic fields that generate each other, so that the wave propagates. In the 1860s, Scottish... View Article
Yes, lasers produce coherent light. Coherent light is made of waves all in phase and same wavelengths. The laser light has following properties:... View Article
