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.

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 semicircular wire of radius 5.0 cm carries a current of 5.0 A. A magnetic field B of magnitude 0.50 T exists along the perpendicular to the plane of the wire. Find the magnitude of the magnetic force acting on the wire.

An alpha particles is projected with a velocity of 10^(7) m/s, in a uniform magnetic field of induction, 1.2xx10^(-6)Wb//m^(2), in a direction perpendicular to the field. If the lateral force action on the particle is 3.84xx10^(-18)N, what is the change on the a particle ?

A particle having a charge of 2.0X10^(-8) C and a mass of 2.0X10^(-10)g is projected with a speed of 2.0X10^3 ms^(-1) in a region having a uniform magnetic field of 0.10 T. The velocity is perpendicular to the field. Find the radius of the circle formed by the particle and also the time period.

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?

A particle having a charge of 5.0 mu C and a mass of 5.0x 10^(-12)kg is projected with a speed of 1.0km s^(-1) in a magnetic field of a magnetic field of magnitude 5.0 m T. The angle between the magnetic field and the velocity is sin^(-1)(0.90) . show that the path of the particle will be a helix. Find the diameter of the helix and its pitch.

An alpha particel is projected with a velocity of 10^(7) m/s, in a unifform magnetic fiedl on inductin, 1.2xx10^(-6)Wb//m^(2), in a direction perpendicular to the field. If the lateral force acting on the particle is 3.84xx10^(-18)N, what is the charge onn the a particle ?