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प्रश्न
Which physical quantity has its unit as J/C? Is it a scalar or vector?
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उत्तर
The electrostatic potential has its unit as J/C and it is a scalar quantity.
संबंधित प्रश्न
A charge 6 µC is placed at the origin and another charge - 5 µC is placed on the y-axis at A = (0, 6.0 m).
(a) Calculate the net electric potential at P = (8.0 m, 0).
(b) Calculate the work done in bringing a proton from infinity to point P. What is the significance of the negative sign?
One hundred and twenty five small liquid drops, each carrying a charge of 0.5 µC and of diameter 0.1 m form a bigger drop. Calculate the potential at the surface of the bigger drop.
If an electron is brought towards another electron, the electric potential energy of the system ______.
Three-point charges +q, +2q and Q are placed at the three vertices of an equilateral triangle. Find the value of charge Q (in terms of q), so that the electric potential energy of the system is zero.
Obtain an expression for the potential energy of a dipole in an external field.
Derive an expression for the electric potential due to an electric dipole.
The electric potential V at any point O (x, y, z all in metres) in space is given by V = 4x2 volt. The electric field at the point (1 m, 0, 2m) in volt/metre is ____________.
Two parallel plates separated by a distance 'd' are kept at potential difference 'V' volt. A charge 'q' of mass 'm' enters in parallel plates with some velocity. The acceleration of the charged particle will be ______
A capacitor C1 = 4µF is connected is series with another capacitor C2 = 1µF. The combination is connected across d.c. source of 200 V. The ratio of potential across C2 to that across C1 is ______.
In the circuit shown, the potential difference across the 4.5 µF capacitor is ______.
Potential energy as a function of r is given by U = `"A"/"r"^10-"B"/"r"^5`, where r is the interatomic distance, A and B are positive constants. The equilibrium distance between the two atoms will be ______.
A semicircular wire of radius a having λ as charge per unit length is shown in the figure. Find the electric potential at the centre of the semicircular wire.
1 Weber/second is equal to ______.
Derive an expression for the electric potential energy of an electric dipole in a uniform electric field.
Derive the relation between electric intensity and electric potential.
The potential difference (VA - VB) between the points A and B in the given figure is______.
Three point charges + Q + 2Q and q are placed at the vertices of an equilateral triangle. The value of charge q in terms of Q so that electrical potential energy of the system is zero, is given by ______.
A conducting sphere of radius 'R' is given a charge 'Q' uniformly. The electric field and the electric potential at the centre of the sphere are respectively [ε0 = permittivity of free space] ______.
'n' small spherical drops of same size which are charged to 'V' volt each coalesce to form a single big drop. The potential of the big drop is ______.
A hollow charged metal sphere has a radius ‘r’. If the potential difference between its surface and a point at a distance ‘3r’ from the centre is ‘v’, then the electric field intensity at a distance ‘3r’ is ______.
