(i) Define mutual inductance of a pair of coils. Write its SI unit. (ii) A long solenoid of radius $R$ and length $L$ has $n$ turns per unit length. A circular loop of radius $r (

01 // VERIFIED BOARD OCCURRENCES

Year	Paper Code	Set	Position
CBSE 2026	Series 55-2	Set 1	Question 25
CBSE 2026	Series 55-2	Set 2	Question 22
CBSE 2026	Series 55-2	Set 3	Question 22

02 // OFFICIAL CBSE MARKING SCHEME BREAKDOWN

• Step 1: Stating the fundamental formula / law statement (+1 Mark)
• Step 2: Intermediate mathematical substitution or proof steps (+1 Mark)
• Step 3: Correct final value or conclusion with mandatory SI units (+1 Mark)