When a compass needle settles down in a magnetic field, _______. the needle aligns itself with the field, the south end of the c
ompass needle pointing in the direction of the field the axis of the needle is perpendicular to the field the needle aligns itself with the field, the north end of the compass needle pointing in the direction of the field where the needle points depends upon how the compass case is oriented
1 answer:
Answer:
The needle aligns itself with the field, the north end of the compass needle pointing in the direction of the field.
Explanation:
When the current flows through the coil, magnetic field is generated. When the compass is placed in the field, the needle aligns itself along the field. The north of the compass points in the direction of the field.
You might be interested in
The electrostatic energy stored in a capacitor with capacitance 
, with a voltage difference V applied to it, and without dielectric, is given by
Now let's assume we fill the space between the two plates of the capacitor with a dielectric with constant k. The new capacitance of the capacitor is
So, the energy stored now is
Therefore, the ratio between the energies stored in the capacitor before and after the introduction of the dielectric is
Now let's assume we fill the space between the two plates of the capacitor with a dielectric with constant k. The new capacitance of the capacitor is
So, the energy stored now is
Therefore, the ratio between the energies stored in the capacitor before and after the introduction of the dielectric is