Which loop gives a constant emf? (Example 6.5c)कौन सा लूप स्थिर emf देता है? (उदाहरण 6.5c)Which loop gives a constant emf? (Example 6.5c)

NCERT Fig 6.8 (our drawing) · Class 12 Physics · Chapter 6 · interactive diagram

Parts and what they mean

• Uniform field region (into page) (एकसमान क्षेत्र (पृष्ठ के अंदर)) — Outside the dashed edge the field is zero.
• Rectangular loop (आयताकार लूप) — Area inside the field falls at a steady rate (height × v), so ε is constant.
• Circular loop (वृत्ताकार लूप) — The chord at the boundary changes, so the rate of change of area — and ε — is not constant.
• Constant velocity v (नियत वेग v) — Both loops move out at the same speed.
• emf of the rectangular loop (आयताकार लूप का emf) — Flat line: ε = B h v until the loop is fully out, then zero.
• emf of the circular loop (वृत्ताकार लूप का emf) — Grows to a maximum when the diameter crosses the edge, then falls (computed from the chord length).

Original diagram drawn by Simple Learning Hub, based on NCERT Fig 6.8 (our drawing). Report a mistake