6 JEE Main 2018 Magnetic Effects of Current previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2018 previous-year questions from the Magnetic Effects of Current chapter of Physics. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the Magnetic Effects of Current chapter hub.
A Helmholtz coil has a pair of loops, each with N turns and radius R . They are placed coaxially at distance R and the…
An electron, a proton and an alpha particle having the same kinetic energy are moving in circular orbits of radii r e ,…
A charge q is spread uniformly over an insulated loop of radius r . If it is rotated with an angular velocity ω wi…
A current of 1 ~A is flowing on the sides of an equilateral triangle of side 4.5 × 10⁻² ~m. The magnetic field at the c…
A Helmholtz coil has pair of loops, each with N turns and radius R. They are placed coaxially at distance R and the sam…
The dipole moment of a circular loop carrying a current I , is m and the magnetic field at the centre of the loop is B…