Physics-
General
Easy
Question
Two long thin wires ABC and DEF are arranged as shown. They carry current I as shown. The magnitude of the magnetic field at O is
- zero
The correct answer is:
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In the given figure the magnitude of magnetic field at O is (all three wires are quarter circular arc)
In the given figure the magnitude of magnetic field at O is (all three wires are quarter circular arc)
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Two particles A and B of masses mA and 
respectively and having the same charge are moving in a plane. A uniform magnetic field exists perpendicular to this plane. The speeds of the particles are VA and VB respectively and the trajectories are as shown in the figure. Then
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AB is a section of straight wire carrying a current I. P is a point at a distance d from AB. The magnetic field at P due to AB has magnitude
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Figure shows a conducting square loop of side a which is placed in a plane perpendicular to a uniform magnetic field B. Points A and D are connected to a battery which sends a current i. The magnetic force on the loop is
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A particle of mass m and charge q is released from rest at the origin as shown in the figure. The speed of the particle when it has travelled a distance d along the z-axis is given by
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For a positive charged particle moving in a x-y plane initially along the x-axis, there is a sudden change in its path due to the presence of electric and/or magnetic fields beyond P. The curved path is shown in the x-y plane and is found to be non-circular Which one of the following combinations is possible?
For a positive charged particle moving in a x-y plane initially along the x-axis, there is a sudden change in its path due to the presence of electric and/or magnetic fields beyond P. The curved path is shown in the x-y plane and is found to be non-circular Which one of the following combinations is possible?
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The resistance of three parts of a circular loop are as shown in the figure. The magnetic field at the centre O is
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Which will decay faster if exposed freely to the air –
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The IUPAC name of given compound is -
The IUPAC name of given compound is -
chemistry-General
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The IUPAC name of the compound is :
The IUPAC name of the compound is :
chemistry-General
chemistry-
The IUPAC name of the compound is :
The IUPAC name of the compound is :
chemistry-General
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The IUPAC name of the given compound is :
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chemistry-General
chemistry-
chemistry-General
