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.
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Answer:
The magnification would be "103.55". A further explanation is given below.
Explanation:
The given values are:
Distance between lens and eyepiece,
L = 85 cm
Eyepiece is,
= 123 D
Now,
The refractive power of eye piece will be:
⇒
The length of the telescope will be:
⇒
⇒
On substituting the values, we get
⇒
⇒
Now,
The magnification of the telescope will be:
⇒
⇒
⇒