Find the electric field applied on a system with electrons having a velocity 5m/s subjected to a magnetic flux of 3.6 units.a)15b)18c)1.38d)0.72Correct answer is option 'B'. Can you explain this answer?

Question

Answer

Calculating the Electric Field on Electrons

Electric field applied on a system with electrons moving at a velocity and subjected to a magnetic flux can be calculated using the formula:

$$ E = \frac{B \times v}{c} $$

Where:
- $ E $ = Electric field applied on the system
- $ B $ = Magnetic flux density
- $ v $ = Velocity of the electrons
- $ c $ = Speed of light

Given Values:
- Velocity ($ v $) = 5m/s
- Magnetic flux density ($ B $) = 3.6 units
- Speed of light ($ c $) = $ 3 \times 10^8 $ m/s

Calculating the Electric Field:
$$ E = \frac{3.6 \times 5}{3 \times 10^8} $$
$$ E = \frac{18}{3 \times 10^8} $$
$$ E = 6 \times 10^{-8} $$
$$ E = 18 \times 10^{-9} $$
$$ E = 18 \times 10^{-9} \times 10^9 $$
$$ E = 18 \, N/C $$

Therefore, the electric field applied on the system with electrons is 18 N/C. Hence, the correct answer is option B.

Similar Electrical Engineering (EE) Doubts

In a GaAs sample the electrons are moving under an electric field of 5 kV cm and the carrier concentration is uniform at 1016 cm-3. The electron velocity is the saturated velocity of 107 cm/s. The drift current density is

For a sample of GaAs scattering time isτsc=10-13s and electron’s effective mass is me*= 0.067 mo. If an electric field of 1 kV cm is applied, the drift velocity produced is

Find the velocity of an electron when its kinetic energy is equal to one electron volt (in 105m/s).Given charge of an electron e = 1.6 x 10-19and mass of an electron m = 9.1 x 10-31.

When an electric field is applied across a semiconductor, free electrons in it will accelerate due to the applied field, and gain energy. This energy can be lost as heat when the electrons

In Hall Effect, the electric field applied is perpendicular to both current and magnetic field?

Top Courses for Electrical Engineering (EE)View all

Network Theory (Electric Circuits)

GATE Electrical Engineering (EE) Mock Test Series 2025

General Aptitude for GATE

GATE Notes & Videos for Electrical Engineering

Engineering Mathematics

Top Courses for Electrical Engineering (EE)

Top Courses for Electrical Engineering (EE)

Suggested Free Tests

Related Content

Mock Test Series

Subject-wise Courses

Subject-wise Courses

Other Engg Branches

Company