Physics-
General
Easy
Question
A steady current is set up in a cubic network composed of wires of equal resistance and length d as shown in figure. What is the magnetic field at the centre P due to the cubic network ?
- 0
The correct answer is:
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An infinitely long straight conductor is bent into the shape as shown in figure. It carries a current I ampere and the radius of the circular loop is r meter. Then the magnetic induction at the centre of the circular part is
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In the given figure, B is magnetic field at P due to shown segment AB of an infinite current carrying wire. A loop is taken as shown in figure. Which of the following statement(s) is/are correct
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The magnetic force between wires as shown in figure is :-
The magnetic force between wires as shown in figure is :-
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Match the reactions given in Column I with the suitable reagents given in Column II.
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Match the common names given in Column I with IUPAC names given in column II.
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A wire carrying a current of 4A is bent in the form of a parabola 
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An infinitely long straight wire is bent as shown in figure. The circular portion has a radius of 10 cm with its center O at a distance r from the straight part. The value of r such that the magnetic field at the center O of the circular portion is zero will be :-
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