MCQ
Dimensional formula of magnetic flux is
  • $M L^2 T^{-2} A^{-1}$
  • B
    $M L^0 T^{-2} A^{-2}$
  • C
    $M^0 L^{-2} T^{-2} A^{-3}$
  • D
    $M L^2 T^{-2} A^3$

Answer

Correct option: A.
$M L^2 T^{-2} A^{-1}$
(a) $\phi=B A=\frac{F}{I \times L} A=\frac{\left[M L T^{-2}\right]\left[L^2\right]}{[A][L]}=\left[M L^2 T^{-2} A^{-1}\right]$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

A diverging beam of light from a point source $S$ having divergence angle $\alpha$, falls symmetrically on a glass slab as shown. The angles of incidence of the two extreme rays are equal. If the thickness of the glass slab is $t$ and the refractive index $n$, then the divergence angle of the emergent beam is
A man runs towards mirror at a speed of $15 \mathrm{~m} / \mathrm{s}$. What is the speed of his image
A man throws a ball vertically upward and it rises through $20 m$ and returns to his hands. What was the initial velocity ( $u$ ) of the ball and for how much time $(T)$ it remained in the air $\left[g=10 m / s^2\right]$
The coil of a galvanometer consists of $100$ $turns$ and effective area of $1\, square-cm$. The restoring couple is ${10^{ - 8}}\,N - m/radian$. The magnetic field between the pole pieces is $5\, T$. The current sensitivity of this galvanometer will be
The internal resistance of a primary cell is $4 ohm$. It generates a current of $0.2 amp$ in an external resistance of $21 ohm$. The rate at which chemical energy is consumed in providing the current is
A reversible engine converts one-sixth of the heat input into work. When the temperature of the sink is reduced by $62^{\circ} \mathrm{C}$, the efficiency of the engine is doubled. The temperatures of the source and sink are
In electrolysis, if the duration of the passage of current is doubled, the mass liberated is
Adiabatic modulus of elasticity of a gas is $2.1 \times 10^5 \mathrm{~N} / \mathrm{m}^2$. What will be its isothermal modulus of elasticity $\left(\frac{C_p}{C_v}=1.4\right)$
The emf of a thermocouple, one junction of which is kept at $0^{\circ} C$, is given by $e=a t+b t^2$ the Peltier co-efficient will be
If a cycle wheel of radius $4 m$ completes one revolution in two seconds. Then acceleration of a point on the cycle wheel will be