Advertisements
Advertisements
प्रश्न
State the formula giving the relation between electric field intensity and potential gradient.
Advertisements
उत्तर
E = `-(d"v")/(dx)`
APPEARS IN
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 ______.
Which physical quantity has its unit as J/C? Is it a scalar or vector?
Find the electric potential at the surface of an atomic nucleus (Z = 50) of radius 9 × 10-13 cm.
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.
Derive an expression for the electric potential due to an electric dipole.
In a certain region of space with volume 0.2 m3 , the electric potential is found to be 5V throughout. The magnitude of electric field in this region is: ____________.
The potential differences that must be applied across the parallel and series combination of 3 identical capacitors are such that the energy stored in them becomes the same. The ratio of potential difference in parallel to series combination is ______
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______.
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] ______.
