Hall | MCQs

Explanation

• Comets: huge masses of snow and rocks that revolve around the Sun in orbits.
• Comets: have huge glowing tails.
• Halley's Comet was last seen in: 1986
• Halley's Comet will be next seen in: 2062

Explanation

Explanation

Halle (Saale) is located in the southern part of Saxony-Anhalt in central Germany,

The State of Halle is Saxony-Anhalt

The District of Halle is an Urban District

Halleis the largest city of the German state of Saxony-Anhalt,

Halle is the fifth most populous city in the area of former East Germany

Explanation

• The electric field strength related to Hall voltage is given by VH/d, where V is the Hall voltage and d is the width of the conductor.
• The Hall effect is the production of a potential difference (the Hall voltage) across an electrical conductor that is transverse to an electric current in the conductor and to an applied magnetic field perpendicular to the current.

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

Hallow means مقدس

Desecrate means بے حرمتی کرنا

Explanation

 The Hall effect is a phenomenon where a voltage develops across a conductor perpendicular to both the applied current and magnetic field.

This voltage is proportional to the magnetic field strength, the current, and the carrier concentration in the conductor.

By measuring this Hall voltage, scientists can determine the concentration of charge carriers (electrons or holes) in a material. 

Explanation

Anteroom means وہ کمرہ جو دوسرے کمرے میں کھلتا ہو