हिंदी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान कक्षा ११

Which of the Following Four Graphs May Best Represent the Current-deflection Relation in a Tangent Galvanometer? - Physics

Advertisements
Advertisements

प्रश्न

Which of the following four graphs may best represent the current-deflection relation in a tangent galvanometer?

आलेख

उत्तर

curve

Since i ∝ tan θ , the only graph that represents this correlation is curve c.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 14: Permanent Magnets - MCQ [पृष्ठ २७६]

APPEARS IN

एचसी वर्मा Concepts of Physics Vol. 2 [English] Class 11 and 12
अध्याय 14 Permanent Magnets
MCQ | Q 10 | पृष्ठ २७६

संबंधित प्रश्न

State how magnetic susceptibility is different for the three types of magnetic materials, i.e. diamagnetic, paramagnetic and ferromagnetic materials


State two advantages of an electromagnet over a permanent magnet.


Write two characteristics of a material used for making permanent magnets ?


Can we have a single north pole, or a single south pole?


Magnetic meridian is


Do permeability and relative permeability have the same dimensions?


The coercive force for a certain permanent magnet is 4.0 × 104 A m−1. This magnet is placed inside a long solenoid of 40 turns/cm and a current is passed in the solenoid to demagnetise it completely. Find the current.


If the earth's magnetic field has a magnitude 3.4 × 10−5 T at the magnetic equator of the earth, what would be its value at the earth's geomagnetic poles?


The magnetic field due to the earth has a horizontal component of 26 μT at a place where the dip is 60°. Find the vertical component and the magnitude of the field.


A moving-coil galvanometer has a 50-turn coil of size 2 cm × 2 cm. It is suspended between the magnetic poles producing a magnetic field of 0.5 T. Find the torque on the coil due to the magnetic field when a current of 20 mA passes through it.


The magnetometer of the previous problem is used with the same magnet in Tan-B position. Where should the magnet be placed to produce a 37° deflection of the needle?


A deflection magnetometer is placed with its arms in north-south direction. How and where should a short magnet having M/BH = 40 A m2 T−1 be placed so that the needle can stay in any position?


The combination of two bar magnets makes 10 oscillations per second in an oscillation magnetometer when like poles are tied together and 2 oscillations per second when unlike poles are tied together. Find the ratio of the magnetic moments of the magnets. Neglect any induced magnetism.


Choose the correct option:

Soft iron is used to make the core of the transformer because of its ______.


Which property of soft iron makes it useful for preparing electromagnet?


Identify the mismatched pair.

Which of the following is the most suitable material for making permanent magnet?

A wire of length 2 m carrier of lamp is bend to form a circle. The magnetic moment of a coil is :-


A steel wire of length 1 has a magnetic moment m it is then bent into a semicircular arc. The new magnetic moment is


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×