The correct answer is (D) 6 A in the clockwise direction. To nullify the magnetic field at the common center, the magnetic fields produced by both loops must be equal and opposite. Using the ratio of radii and currents, loop ...
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The correct answer is (C) Helical with its axis parallel to X-axis. The electric field exerts a force along the X-axis, while the magnetic field causes circular motion in the YZ plane. The superposition of linear and circular motions results ...
The magnetic field due to a straight current-carrying wire is given by B = μ0I/2πr . Substituting μ0 = 4π × 10⁻⁷ , I = 5 A and r = 0.1 m, B = 1 × 10⁻⁵ T. Using the ...
The magnetic field due to a straight current-carrying wire is given by B = μ0I/2πr. Substituting μ0 4π × 10⁻⁷, I = 10 A and r = 0.1 m, B = 2 × 10⁻⁵ T. Using the right-hand rule, ...
In a parallel circuit, power P = V²/R. Since both resistors have the same voltage, the thermal energy ratio is inversely proportional to resistance. Thus, E100Ω : E 200Ω = 200 : 100 = 2:1. Answer: (b) 2:1.