List of top Physics Questions on Magnetic Force asked in TS EAMCET

If the wavelength of the incident radiation on a photosensitive metal surface is decreased from \(3100 \, \text{Å}\) to \(1550 \, \text{Å}\), the maximum kinetic energy of the emitted photoelectrons is tripled. - The work function of the metal surface is
If two electromagnetic waves with electric fields given by $$ \vec{E_1} = E_0 \sin (kx - \omega t) \hat{j} $$ and $$ \vec{E_2} = E_0 \sin (kx - \omega t + \pi) \hat{j} $$ - interfere, then the peak value of the electric field of the resultant wave is
When an alternating voltage given by \(E = 100 \sin(10^2 t)\), where \(E\) is in volts and \(t\) is in seconds, is applied across a capacitor of capacitance \(20 \, \mu F\), the peak current flowing in the circuit is
When a diamagnetic substance of relative permeability \(0.5\) is filled inside a solenoid, then its self-inductance
Magnetic field on the axis of a short bar magnet of magnetic moment \( M \), at a distance \( x \) from its centre is:
An electron falling freely under the influence of gravity enters a uniform magnetic field directed towards south. The electron is initially deflected towards?
Two long straight parallel wires A and B separated by \( 5 \) m carry currents \( 2 \) A and \( 6 \) A respectively in the same direction. The resultant magnetic field due to the two wires at a point \( 2 \) m distance from the wire A in between the two wires is?
A short magnet placed in a uniform magnetic field making an angle with the field experiences a torque. If the angle made by the magnet with the field is changed from \(30^\circ\) to \(45^\circ\), the torque on the magnet?
The self-induced emf of a coil is 36 V. If the current in the coil is changed from 12 A to 24 A in one second, then the change in the energy stored in the coil is:
A current \( i \) flows through a circular loop of radius \( R \). The ratio of the magnetic field produced at its centre to the field produced at a point at a distance \( \frac{R}{\sqrt{3}} \) from its centre on its axis is:
Two particles of charges in the ratio \( 1:2 \) and masses in the ratio \( 2:3 \) moving along a straight line enter a uniform magnetic field at right angles to the direction of the field. If the radii of the circular paths of the particles in the magnetic field are in the ratio \( 3:4 \), then the ratio of the initial linear momenta of the two particles is:
An electron moves in a combined electric and magnetic field, the electric field being $1.5 \times 10^3 \, V/m$ and magnetic field being 0.75 T. If the resultant force on the moving electron is to be zero, the minimum velocity of the electron in km s is