JEE PYQ: Magnetic Effects Of Current Question 33
Question 33 - 2019 (08 Apr 2019 Shift 2)
Two very long, straight, and insulated wires are kept at $90°$ angle from each other in $xy$-plane as shown in the figure. These wires carry currents of equal magnitude $I$, whose directions are shown in the figure. The net magnetic field at point P will be:
(1) Zero
(2) $-\frac{\mu_0 I}{2\pi d}(\hat{x} + \hat{y})$
(3) $\frac{+\mu_0 I}{\pi d}(\hat{z})$
(4) $\frac{\mu_0 I}{2\pi d}(\hat{x} + \hat{y})$
Show Answer
Answer: (1) Zero
Solution
The two wires produce equal and opposite magnetic fields at point P due to symmetry.
BETA
