Explanation

• The Hall voltage (VH) is directly proportional to the magnetic flux density (B) and the current (I) flowing through the conductor, as well as the Hall coefficient (RH) of the material.
• The relationship is given by the formula: VH = RH × B × I

Explanation

Explanation

Explanation

• Tungsten is very resistant to corrosion and has the highest melting point (melting point = 3695 K) and the highest tensile strength of any element.
• Tungsten is used for making bulb filaments of incandescent lamps because it has the highest melting point and does not melt even while it is glowing for long hours.

Explanation

The unit of magnetic flux density is Wb m⁻² (weber per square meter).

It is commonly referred to as a tesla (T), which quantifies the strength of the magnetic field.

Explanation

One degree of latitude is approximately 111 km everywhere, but it varies slightly: about 110.6 km at the equator and 111.7 km at the poles.

Lines of longitude, or meridians, run north-south.

Explanation

Commutators and brushes are recommended for high DC voltage generators because they produce sparks.

This happens due to the intermittent contact, which helps in maintaining unidirectional current flow but requires careful management to avoid excessive sparking and wear.

Explanation

In a gasoline vehicle, a capacitor/spark plug tends to prevent an arc at the contacts.

The capacitor is often part of the ignition system.

It helps suppress electrical noise and ensures smoother operation of the ignition system by minimizing arcing.

Explanation

Optics is the branch of physics that studies light and its interactions with matter.

It including phenomena such as reflection, refraction, and dispersion.

Explanation

• A rivet is used to fasten two hard materials together.
• Such as metal plates or sheets.