Why is tungsten not used as a fuse wire ?

Tungsten is not used as a fuse wire primarily due to its high melting point and resistance to heat. Fuses are designed to protect electrical circuits by melting (blowing) when current exceeds a safe level, thereby interrupting the circuit and preventing damage or hazards such as fires. Tungsten has an extremely high melting point of … Read more

What are the properties of radio waves ?

Radio waves possess several key properties that define their behavior and utility in communication and other applications. They are a type of electromagnetic radiation characterized by their long wavelengths, typically ranging from about 1 millimeter to hundreds of meters. One essential property of radio waves is their ability to travel long distances through the atmosphere … Read more

How to combine circuit breaker switch and fuse together ?

Combining a circuit breaker switch and a fuse together in a single unit involves integrating both components into a hybrid device that provides dual protection against overcurrent and short circuit faults. This combination is typically achieved by designing a housing or enclosure that accommodates both a circuit breaker mechanism and a fuse holder within the … Read more

Why do cathode rays move in a straight line ?

Cathode rays move in a straight line primarily due to their nature as charged particles, specifically electrons, emitted from a cathode in a vacuum tube. When electrons are emitted from the cathode, they possess kinetic energy and are influenced by the electric potential difference within the tube. In the absence of any external forces like … Read more

How to increase the range of a Tesla coil ?

Increasing the range of a Tesla coil involves several considerations and modifications aimed at optimizing its performance. One effective method is to enhance the power supply driving the Tesla coil. This includes using a higher voltage and current power source to generate larger electrical discharges, which can extend the coil’s effective range. Additionally, improving the … Read more

Does the flux in transformer core increases with load ?

The flux in a transformer core does not necessarily increase linearly with load. When the load connected to a transformer increases, the current drawn from the secondary winding also increases. This increased current induces a higher magnetic field in the transformer’s windings, which, according to Faraday’s law of electromagnetic induction, leads to a corresponding increase … Read more

How do we control the speed of a single phase Induction motor ?

Controlling the speed of a single-phase induction motor can be achieved using various methods, depending on the specific application and motor design. One common method is to use a variable frequency drive (VFD) or an electronic speed controller designed for single-phase motors. These devices regulate the frequency and voltage supplied to the motor, thereby controlling … Read more