Home
Class 12
PHYSICS
An alpha particle is projected verticall...

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.

Text Solution

Verified by Experts

`q = 2xx 1.6 xx 10^(-19) C `,
` v = 3 xx (10 ^4) km/s = 3 xx (10^7) m/s b` ,
` B = I T , F = qBv ` ,
` = 2 xx 1.6 xx 10 ^(-19) xx 10 ^7 xx 1 ` ,
` 9.6 xx 10^(-12) m/s ` .
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • MAGNETIC FIELD

    HC VERMA|Exercise objective2|10 Videos

  • LIGHT WAVES

    HC VERMA|Exercise Exercises|41 Videos

  • MAGNETIC FIELD DUE TO CURRENT

    HC VERMA|Exercise exercise|61 Videos

Similar Questions

Explore conceptually related problems

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 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.

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 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 long, vertical straight wire carrying a current of 30 A is placed in an external, uniform magnetic field of ( 4.0 xx (10^-4) T exists from south to north. Find magnetic field at a point 2.0 away from the wire.

A particle is fired vertically upward with a speed of 15 kms^-1 . With what speed will it move in interstellar space. Assume only earth's gravitational field.

A 10 g bullet having a charge of 4.00 muC is fired at a speed of 270 ms^(-1) in a horizontal direction. A vertical magnetic field of 500 muT exists in the space. Find the deflection of the bullet due to the magnetic field as it travels through 100m. make appropriate approximations.

A proton is projected with a velocity of 3X10^6 m s ^(-1) perpendicular to a uniform magnetic field of 0.6 T. find the acceleration of the proton.

Home
Profile