HTET Exam - Level 3 Pgt - Magnetic Effects Of Current

A metallic rod when placed in strong magnetic field, aligns itself at right angles to the magnetic field. The nature of material is :

$\text{The magnetic field at the centre of a circular coil of radius } r \text{ and carrying a current } I \text{ is } B.…

Two identical coils carry equal currents and have a common center, but their planes are at right angles to each other. What is the magnitude…

$\text{A square frame of side 'L' carries a current } I. \text{ The magnetic field at its centre is } B. \text{ The same current…

An electric current is flowing through a circular coil of radius R. The ratio of the magnetic field at the centre of the coil and…

A long solenoid has 500 turns per meter and a cross sectional area $4~cm^{2}$ The current in its winding is increasing at 100 A/s. The…

When an electron is passing through magnetic field, then :

Electromagnetic waves are transverse in nature is evident by :

Consider the following statements: (i) Any dc-generator can also function as a simple dc-motor. (ii) The induced electromotive force produced in an AC Generator reverses…

Which one of the following is co-curricular activity in science teaching?