Predict the polarity of the capacitor in situation below on placed bet...
According to the diagram which is given in the question, their induced current in an anti-clockwise direction when we see from the left-hand side and its direction is clockwise when we see from the right-hand side. So, we can say the direction of the induced current is in a clockwise sense. It means that plate A of the capacitor is at a higher potential than plate B in simple words, B will be the negative plate while A will be the positive plate. In other words, we can say a plate will become positive w.r.t. B as the current induced is in a clockwise direction.
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Predict the polarity of the capacitor in situation below on placed bet...
Polarity of the capacitor in a magnetic field
Introduction:
When a capacitor is placed in a magnetic field, the magnetic field exerts a force on the charges within the capacitor plates. This force causes a redistribution of charges on the plates, resulting in a polarity on the capacitor.
Explanation:
The magnetic field in the given situation is from North (N) to South (S) direction. Let's analyze the polarity of the capacitor in different scenarios.
a) Plate on the left side is:
In this scenario, the left plate of the capacitor is closer to the North pole of the magnetic field. According to Fleming's left-hand rule, when a current-carrying conductor is placed in a magnetic field, the force experienced by the conductor is perpendicular to both the direction of the current and the magnetic field.
In the case of a capacitor, the charges on the plate experience a force perpendicular to both the magnetic field direction and the direction of the charges (which is from positive to negative). This force causes a redistribution of charges on the plate, with positive charges being pushed towards the top, and negative charges being pushed towards the bottom.
As a result, the left plate of the capacitor becomes positively charged, and the right plate becomes negatively charged. Therefore, the polarity of the capacitor in this scenario is such that the left plate is positive and the right plate is negative.
Conclusion:
Based on the above explanation, the polarity of the capacitor in the given situation, where the magnetic field is from North to South, and the plate on the left side is closer to the North pole, is such that the left plate is positive and the right plate is negative.
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