Engineering Entrance Exam

The principle that a current-carrying coil placed in a magnetic field feels a torque is behind a moving coil galvanometer. The coil rotates due to this torque, and the angle of deflection is proportional to the current. For the conversion of a galvanometer into an ammeter, a high current is allowed to bypass the Galvanometer by connecting a low resistance (shunt) in parallel. A high resistance is connected in series to restrict current and convert it into a voltmeter. The conversions make the galvanometer ideal for measuring higher ranges of voltage and current in practical circuits.

This force is exerted by the magnetic fields produced by the parallel current-carrying conductors. If the currents run in the opposite directions, they repel and if they run in the same direction, then they attract. The force is exerted because each conductor lies in the magnetic field produced by the other. A force acts on the moving charges in each wire, according to the Lorentz force law. This concept is fundamental in understanding electromagnetic interactions in power transmission lines and circuits. It is not just theoretical, it defines the SI unit of current and the ampere.

When electric current passes through a long coil of wire, it generates a nearly uniform magnetic field inside it, it is the solenoid. Outside this solenoid, the magnetic field is weak and negligible. On the other hand, in a toroid, the magnetic field is completely confined within its core, which forms a closed loop. It is a solenoid bent into a circular shape (doughnut-shaped). Outside the toroid, there is essentially no magnetic field. By understanding this difference, the students can design electromagnetic devices more effectively. The toroids are useful in lowering electromagnetic interference.

JEE Main is the entrance exam for admission to the four-year BTech at ITS Engineering College. The required JEE Main cut-off required in different rounds of UPTAC counselling varies yearly. It further differs for candidates belonging to different reservation categories. The following table presents the ITS Engineering College JEE (Main) cut-off for BTech admission in 2024 and 2023 for some specialisations during the last round of UPTAC counselling:

University of Hyderabad offers Integrated BTech courses via JEE Main. Based on University of Hyderabad JEE Main cutoff 2024, the closing rank for the General AI category candidates ranged between 42292 and 143318. So, candidates can only opt for Integrated BTech + M.Tech courses at University of Hyderabad through JEE Main. To know more, candidates can click here:

Candidates scoring good ranks must go for JEE Advanced exam. If not, then they must should focus on improving their JEE Main score to get into University of Hyderabad by taking multiple mock tests and practicing previous year's question papers. Candidates can identify their areas of proficiency and topics where they need improvement. If they can achieve full marks in their practice sessions, they can start preparing for JEE Advanced. However, if they cannot score full marks, it is recommended that they appear for multiple mock test series for more practice.

Kirchhoff's laws include the Loop Rule (KVL) and the Junction Rule. These are helpful in analyzing complex electrical circuits. The solutions explain the concepts behind these laws and help them in applying in various example problems involving the EMF sources and multiple resistors. By thoroughly practicing these solutions, the students learn how to choose the junctions and loops strategically for solving problems. This also helps in preparing for exams that include circuit analysis.