Questions: A positive charge is placed between the plates of a parallel plate capacitor and released from rest at Point B, as shown in the figure. In what direction does the charge move?
A ・
B+q
C ・
Transcript text: A positive charge is placed between the plates of a parallel plate capacitor and released from rest at Point B, as shown in the figure. In what direction does the charge move?
A ・
$B+q$
C ・
Solution
Solution Steps
Step 1: Understand the Setup
The problem involves a positive charge \(+q\) placed between the plates of a parallel plate capacitor. The charge is released from rest at Point B. We need to determine the direction in which the charge will move.
Step 2: Analyze the Electric Field in a Capacitor
In a parallel plate capacitor, the electric field \(\mathbf{E}\) is uniform and directed from the positive plate to the negative plate. This means that any positive charge placed in this field will experience a force in the direction of the electric field.
Step 3: Determine the Direction of Motion
Since the charge is positive, it will move in the direction of the electric field, which is from the positive plate to the negative plate. This is because the electric force on a positive charge is in the same direction as the electric field.
Final Answer
The charge moves in the direction of the electric field, from the positive plate to the negative plate.
\(\boxed{\text{The charge moves towards the negative plate.}}\)