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AAKASH INSTITUTE-Mock Test 31: PHYSICS-Example
- Lines joining places of equal angle of declination are called
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- A magnetic needle is made to vibrate in uniform field H, then its time...
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- The magnetic needle of a tangent galvanometer is deflected at an angle...
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- If a magnet of pole strenth m is divided into four parts such that the...
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- The angle between the magnetic merdian and geographical merdian is cal...
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- When the N-pole of a bar magnet points towards the south and S-pole to...
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- Which of the following statement is incorrect?
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- A ship is sailing due west according to Mariner's compass . If the dec...
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- The values of apparent angles of dip in two places measured in two mut...
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- The true value of dip at a place is 30^(@) . The vertical plane carry...
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- When a current of 1A passes through a tangent galvanometer, angle of d...
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- The magnetism of a bar magnet is due to
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- The only property possessed by ferromagnetic substance is
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- Which of the following statement is incorrect about hysteresis?
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- For an isotropic medium B, mu, H and M are related as (where B, mu(0),...
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- The variation of magnetic susceptibility (chi) with absolute temperatu...
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- The coercivity of a bar magnet is 120A//m. It is to be demagnetised by...
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- Relative permittivity and permeability of a material are epsilon(r) ...
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- Needles N(1) , N(2), and N(3) are made of a ferromagnetic, a paramagne...
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- The material suitable for making electromagnets should have
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