Plane figures made of thin wires of resistance R = 50 milli ohm / metre are located in a…
Physics · JEE Advanced · NTA Exams — Electromagnetic Induction and Alternating Currents
Plane figures made of thin wires of resistance R = 50 milli ohm/metre are located in a uniform magnetic field perpendicular into the plane of the figures and which decrease at the rate dB/dt = 0.1 m T/s. Then currents in the inner and outer boundary are. (The inner radius a = 10 cm and outer radius b = 20 cm)
- 10– 4 A (Clockwise), 2 × 10– 4 A (Clockwise)
- 10– 4 A (Anticlockwise), 2 × 10– 4 A (Clockwise)
- 4 × 10– 4 A (clockwise), 10– 4 A (Clockwise)
- 2 × 10– 4 A (Anticlockwise), 10– 4 A (Anticlockwise)
Answer
(A) 10 – 4 A (Clockwise), 2 × 10 – 4 A (Clockwise)
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