An electron enters a region of uniform magnetic field as shown - Scottish Highers Physics - Question 12 - 2019
Question 12
An electron enters a region of uniform magnetic field as shown.
The direction of the magnetic force on the electron immediately after entering the field is
A towa... show full transcript
Worked Solution & Example Answer:An electron enters a region of uniform magnetic field as shown - Scottish Highers Physics - Question 12 - 2019
Step 1
Identify the direction of the electron's motion
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The electron enters the magnetic field moving horizontally left to right.
Step 2
Determine the direction of the magnetic field
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
According to the image, the magnetic field is directed out of the page.
Step 3
Use the right-hand rule
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
To find the direction of the magnetic force, apply the right-hand rule. Point your fingers in the direction of the electron's velocity (right), curl them in the direction of the magnetic field (out of the page), and your thumb will indicate the direction of the force, which points upwards.
Step 4
Conclude the answer
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The magnetic force on the electron is directed towards the top of the page. Therefore, the correct choice is A.
Join the Scottish Highers students using SimpleStudy...
