Example 4.12: what a meter does to the currentउदाहरण 4.12: मीटर धारा को कैसे बदलता हैExample 4.12: what a meter does to the current

NCERT Fig 4.23 · Class 12 Physics · Chapter 4 · interactive diagram

Parts and what they mean

• Cell, 3 V (no internal resistance) (सेल, 3 V (आंतरिक प्रतिरोध नहीं)) — Drives the current.
• Resistor 3 Ω (प्रतिरोधक 3 Ω) — Without any meter: I = 3/3 = 1.00 A.
• Meter in series (श्रेणी में मीटर) — Galvanometer alone (60 Ω): I = 3/63 = 0.048 A. As ammeter (60 Ω ∥ 0.02 Ω ≈ 0.02 Ω): I = 3/3.02 = 0.99 A.
• Current I (धारा I) — Same everywhere in this series loop.

Original diagram drawn by Simple Learning Hub, based on NCERT Fig 4.23. Report a mistake