A current-carrying wire held up by a magnetic fieldचुंबकीय क्षेत्र द्वारा हवा में थमा धारावाही तारA current-carrying wire held up by a magnetic field

NCERT Fig 4.3 · Class 12 Physics · Chapter 4 · interactive diagram

Parts and what they mean

• Straight wire, length l, mass m (सीधा तार, लंबाई l, द्रव्यमान m) — 200 g, 1.5 m in NCERT Example 4.1.
• Current I (left to right) (धारा I (बाएँ से दाएँ)) — 2 A in Example 4.1.
• Uniform field B into the page (पृष्ठ के अंदर एकसमान क्षेत्र B) — Horizontal and perpendicular to the wire.
• Magnetic force F = I l × B (upwards) (चुंबकीय बल F = I l × B (ऊपर)) — l to the right, B into the page → l × B points up.
• Weight mg (downwards) (भार mg (नीचे)) — Balanced exactly by the magnetic force.

Original diagram drawn by Simple Learning Hub, based on NCERT Fig 4.3. Report a mistake