Question
Identify the dimensional formula of electric current.
✓
Answer
The flow of charge per unit time is defined as current. The fundamental unit of current is Ampere $($named after Andre Marie Ampere$).$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Two charges each equal to 2μC are 0.5m apart. If both of them exist inside vacuum, then the force between them is(a) 1.89 N(b) 2.44 N(c) 0.144 N(d) 3.144 N
The dispersive power of the material of lens of focal length 20 cm is 0.08. The longitudinal chromatic aberration of the lens is(a) 0.08 cm(b) 0.08/20 cm(c) 1.6 cm(d) 0.16 cm
Six charges, three positive and three negative of equal magnitude are to be placed at the vertices of a regular hexagon such that the electric field at $\text{O}$ is double the electric field when only one positive charge of same magnitude is placed at $\text{R}$. Which of the following arrangements of charges is possible for $\text{P, Q, R, S, T}$ and $\text{U}$ respectively
→The net resistance of an ammeter should be small to ensure that:
- It does not get overheated.
- It does not draw excessive current.
- It can measure large currents.
- It does not appreciably change the current to be measured.
Calculate the current through a lamp of 25w operating at 220v.
A parallel monochromatic beam of light is incident normally on a narrow slit. A diffraction pattern is formed on a screen placed perpendicular to the direction of incident beam. At the first maximum of the diffraction pattern the phase difference between the rays coming from the edges of the slit is
The unit of magnetic flux is
The refractive index of water with respect to air is $\frac{4}{3}$ and the refractive index of glass with respect to air is $\frac{3}{2}$. The refractive index of water with respect to glass is
→A positively charged rod is brought near an uncharged conductor. If the rod is then suddenly withdrawn, the charge left on the conductor will be:
Magnetic dipole moment is a(a) Scalar quantity(b) Vector quantity(c) Constant quantity(d) None of these