Circuits to study the V–I characteristicV–I अभिलक्षण के अध्ययन के परिपथCircuits to study the V–I characteristic

NCERT Fig 14.16 (a), (b) · Class 12 Physics · Chapter 14 · interactive diagram

Parts and what they mean

• (a) Forward bias circuit ((a) अग्रदिशिक बायस परिपथ) — Battery + side connected (through the rheostat and meter) to the p-side of the diode.
• (b) Reverse bias circuit ((b) पश्चदिशिक बायस परिपथ) — Battery reversed: the n-side is now at the higher potential.
• Rheostat / potentiometer (धारा-नियंत्रक / विभवमापी) — Changes the voltage applied to the diode step by step.
• Milliammeter (forward) (मिलीऐमीटर (अग्र)) — Forward current is large — milliamperes.
• Microammeter (reverse) (माइक्रोऐमीटर (पश्च)) — Reverse current is tiny — microamperes, so a more sensitive meter is used.
• Voltmeter across the diode (डायोड के पार वोल्टमीटर) — Measures the voltage V across the diode.
• Diode under test (परीक्षणाधीन डायोड) — Anode (p) on the left, cathode (n) on the right.
• Battery (forward) (बैटरी (अग्र)) — Long plate = +. The + terminal drives current into the p-side.
• Battery (reversed) (बैटरी (उलटी)) — Now the + terminal faces the n-side.

Original diagram drawn by Simple Learning Hub, based on NCERT Fig 14.16 (a), (b). Report a mistake