Gce Model Questions Vol1 2019 Physics Question 18

Practice objective / multiple choice question 18 from the 2019 Gce Model Questions Vol1 Physics examination.

Gce Model Questions Vol1 2019 Physics Objective / Multiple Choice Hard Difficulty
Question 18 GCE_MODEL_QUESTIONS_VOL1 • 2019 • PHYSICS • objective

An electron (mass \(9.11\times10^{-31}\ \text{kg}\), charge magnitude \(e = 1.60\times10^{-19}\ \text{C}\)) enters a uniform magnetic field of magnitude \(0.8\ \text{T}\) directed into the page. Its initial speed is \(3.0\times10^{5}\ \text{m s}^{-1}\) and the velocity makes an angle of \(30^{\circ}\) with the field direction. Determine the radius of the resulting helical trajectory of the electron.

Answer Options

Correct Answer A. 1.07e-6
B. 2.14e-6
C. 1.07e-5
D. 5.3e-7
Correct Answer
A
Correct Option:
1.07e-6

About This Question

This is Gce Model Questions Vol1 2019 Physics Question 18. It is one of the objective questions from the 2019 Gce Model Questions Vol1 Physics examination.

Difficulty level: Hard .

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Chat with Support