Two thick wires and two thin wires, all of same material and same length, form a square in three different ways and
as shown in the figure. With correct connections shown, the magnetic field due to the current flow, at the centre of the loop will be zero in case of
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
In and
only, as current divides equally in the two halves because of equal resistances in the two halves. The current in the two halves than make the field at centre zero.
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
A galvanometer coil has a resistance of and gives full scale deflection for a current of . To con…
A straight wire of mass and length carries a current of . It is suspended in mid-air by a unifor…
When deuterium and helium are subjected to an accelerating field simultaneously then,
A solenoid long and in diameter possesses 10 turns per length. A current of falls through it. T…
A wire is bent as shown in figure and is placed in a region of uniform magnetic field . The lengt…
A circular coil carrying a certain current produces a magnetic field at its centre. The coil is no…