MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Simple Electric Circuit

A slightly di...

Question

A slightly divergent beam of charged particles accelerated by a potential difference v propagates from a point a along the axis of a solenoid.the beam is brought into focus at a distance l from the point a at two successive values of magnetic induction b1 and b2.find the specific charge q/m of the particles.

Open in App

Solution

Suggest Corrections

thumbs-up

1

Similar questions

Q. Electrons emitted with negligible speed from an electron gun are accelerated through a potential difference

V_{0}

along the x-axis. These electrons emerge from a narrow hole into a uniform magnetic field of strength

B

x -

axis, some electrons emerging at slightly divergent angles as shown in the figure. These paraxial electrons are refocused on the x-axis at a distance (Given charge of electron

= e

, mass of electron

= m

(e, m)

emitted with negligible speed from an electron gun are accelerated through a potential difference

V_{0}

x-

axis. These electrons emerge from a narrow hole into a uniform magnetic field of strength

B

x-

axis. Some electrons emerging at slightly divergent angles as shown. These electrons are refocused on the

x -

axis for second time at a distance

\sqrt{\frac{N π^{2} m V_{0}}{e B^{2}}}

. Find the value of

N

Q. The intensity of magnetic induction at the centre of a current-carrying circular coil is

B_{1}

and at a point on its axis at a distance equal to its radius from the centre is

B_{2}

\frac{B_{1}}{B_{2}}

Q. Electrons emitted with negligible speed from an electron gun are accelerated through a potential difference V along the x-axis. These electrons emerge from a narrow hole into a uniform magnetic field B directed along this axis. However, some of the electrons emerging from the hole make slightly divergent angles, as shown in the figure. Show that these paraxial electrons are refocussed on the x-axis at a distance

\sqrt{\frac{8 π^{2} m V}{e B^{2}}}

Q. The kinetic energy of a charged particle decreases by 10 J as it moves from a point at potential 100 V to a point at potential 200 V. Find the charge on the particle.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Simple Electric Circuit

PHYSICS

Watch in App

explore_more_icon

Explore more

Simple Electric Circuit

Standard VII Physics

Join BYJU'S Learning Program

CrossIcon