The figure shows an initially uncharged capacitor connected to a resistor, in a

Question

The figure shows an initially uncharged capacitor connected to a resistor, in a uniform magnetic field pointing into the page (-z direction). Choose which changes to the system would cause the top plate of the capacitor to become positively charged. (True or False)

1. Rotating the magnetic field 90° counterclockwise around the x axis (so that the field ends up pointing towards +y).

2. Rotating the circuit clockwise around the z axis.

3. Rotating the circuit 90° counterclockwise around the y axis.

4. Decreasing the magnetic field strength.

5. Increasing the magnetic field strength.

6. Reversing the direction of the magnetic field.

Explanation / Answer

if top plate of capacitor is positively charged that means current direction is clockwise and due to this, magnetic field inside the page will increase it will only happen if magnetic field inside the page decreses first so for compensating that effect current will move in clockwise direction.

Answer 4 ( Decreasing the magnetic field strength)

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