✓ 1 MARKS
MCQ
🔥 APPEARED IN 3 BOARD SETS
The magnetic flux $\phi$ (in Wb) linked with a coil is related to time $t$ (in s) as $\phi = 5\text{ At}^2 + \text{Bt} - 2\text{C}$
The SI units of A and B are respectively
A
$\text{Wb s}^2$, $\text{Wbs}$
B
$\text{Wb s}^{-1}$, $\text{Wb}$
C
$\text{Wbs}^{-2}$, $\text{Wbs}^{-1}$
D
$\text{Wbs}^{-1}$, $\text{Wbs}^{-2}$
01 // VERIFIED BOARD OCCURRENCES
| Year | Paper Code | Set | Position |
|---|---|---|---|
| CBSE 2026 | Series 55-2 | Set 1 | Question 8 |
| CBSE 2026 | Series 55-2 | Set 2 | Question 11 |
| CBSE 2026 | Series 55-2 | Set 3 | Question 2 |
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)