An alpha particle is projected vertically upward a speed of `3.0 X 10^4 km s^(-1)` in a region where a magnetic field of magnitude 1.0 T exists in the direction south to north. Find the magnetic force that acts on the a particle.

One charged particle with +2e charge is projected from west to east with a speed of 2 xx 10^(6) m/s. A magnetic field of 2 T exists in the direction south to north. Find the magnetic force acting on the charged particle. In which direction the particle is going to get deviated? Neglect gravity and other forces.

Doubly ionized helium ions are projected with a speed of 10kms^(-1) in a direction perpendicular to a uniform magnetic field of magnitude 1.0 T. Find (a) the force acting on an ion, (b) the radius of the circle in which it ciruclates and ( c) the time taken by an ion to complete the circle.

A long vertical wire carrying a current of 10A in the upward direction is placed in a region where a horizontal magnetic field of magnitude( 2.0 xx 10^-3) T exists from south to north. Find the point where the resultant magnetic field is zero.

A long vertical wire carrying a current of 10A in the upward direction is placed in a region where a horizontal magnetic field of magnitude( 2.0 xx 10^-3) T exists from south to north. Find the point where the resultant magnetic field is zero.

A long vertical wire carrying a current of 10A in the upward direction is placed in a region where a horizontal magnetic field of magnitude( 2.0 xx 10^-3) T exists from south to north. Find the point where the resultant magnetic field is zero.

A charge of 2.0 muC moves with a speed of 2.0 X10^6 m s^(-1) along the positive x-axis. A magnetic field vecB of strength (0.20 vecJ +0.40veck) T exists in space. Find the magnetic force acting on the charge

A charge of 2.0 muC moves with a speed of 2.0 X10^6 m s^(-1) along the positive x-axis. A magnetic field vecB of strength (0.20 vecJ +0.40veck) T exists in space. Find the magnetic force acting on the charge

A charge of 2.0 muC moves with a speed of 2.0 X10^6 m s^(-1) along the positive x-axis. A magnetic field vecB of strength (0.20 vecJ +0.40veck) T exists in space. Find the magnetic force acting on the charge

A long, vertical wire carrying a current of 10A in the upward direction is placed in a region where a horizontal magnetic field of magnitude 2.0xx10^-3T exist from south to north. Find the point where the resultant magnetic field is zero.

A proton is projected with a speed of 3X10^6 ms ^(-1) horizontally from est to west. A uniform magnetic field vec B of strength 2.0X10^(-3) T exists in the vertically upward direction(a) find the force on the proton just after it is projected. (b) what is the acceleration produced?