Appeared in: 2026 (2 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) $\text{Wbs}^{-1}$, $\text{Wbs}^{-2}$