You visited us 53 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XII

Physics

Analysis of Force Equation

An electron t...

Question

An electron travelling with a velocity $¯ V = 10^{7} i m / s$ enter a magnetic field of induction $¯ B = ¯ ¯¯¯ ¯ 2 j$ . The force on electron is

1.6 \times 10^{- 12} ¯ j N

No worries! We‘ve got your back. Try BYJU‘S free classes today!

3.2 \times 10^{- 12} ¯ k N

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

6.4 \times 10^{- 12} ¯ k N

No worries! We‘ve got your back. Try BYJU‘S free classes today!

- 3.2 \times 10^{- 12} ¯ k N

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B $3.2 \times 10^{- 12} ¯ k N$
$¯ F = q (\to V \times \to B)$
= $q \times 10^{7} \times 2 \times ¯ k$
= $1.6 \times 10^{- 19} \times 2 \times 10^{7} ¯ k N$
= $3.2 \times 10^{- 12} ¯ k N$

Suggest Corrections

Similar questions

Q. A light beam travelling in the X-direction is described by the electric field

E_{y} = (300 V/m) sin ω (t - x / c) .

An electron is constrained to move along the Y-direction with a speed of

2.0 \times 10^{7} m/s .

Find the maximum electric force and the maximum magnetic force on the electron respectively.

Q. An electron enters in a magnetic field of intensity 5T with a velocity

2 \times 10^{7} m / s

in a direction perpendicular to the field. Calculate the force on the electron.[charge on electron is

- 1.6 \times 10^{- 19} C

]

Q. An electron enters an electric field having intensity

\to E = 3^i + 6^j + 2^k

V m^{- 1}

and magnetic field having induction

\to B = 2^i + 3^j T

with a velocity

\to V = 2 \to i + 3 \to j

{m s}^{- 1}

. The magnitude of the force acting on the electron is (Given

e = - 1.6 \times 10^{- 19} C

)

Q. An electron enters into a magnetic field of induction

1 \times 10^{- 2} T

with velocity

1 \times 10^{7} m / s

and deflects into a circular path of radius

6 \times 10^{- 3} m

. The specific charge of the electron is :

The magnitude of the charge of a single electron or a proton is $1.6 \times 10^{- 19} C$ .
What is the net charge of an object that has 20 electrons and 22 protons?

Join BYJU'S Learning Program

An electron travelling with a velocity ¯V=107i m/s enter a magnetic field of induction ¯B=¯¯¯¯¯2j . The force on electron is

The correct option is B 3.2×10−12¯kN¯F=q(→V×→B)=q×107×2×¯k=1.6×10−19×2×107¯kN=3.2×10−12¯kN

An electron travelling with a velocity $¯ V = 10^{7} i m / s$ enter a magnetic field of induction $¯ B = ¯ ¯¯¯ ¯ 2 j$ . The force on electron is

The correct option is B $3.2 \times 10^{- 12} ¯ k N$
$¯ F = q (\to V \times \to B)$
= $q \times 10^{7} \times 2 \times ¯ k$
= $1.6 \times 10^{- 19} \times 2 \times 10^{7} ¯ k N$
= $3.2 \times 10^{- 12} ¯ k N$