Recently Active Miscellaneous Questions

The capacitance of a parallel plate capacitor with plate area A and separation d is C. The space between the plates is filled with two wedges of dielectric constants K1 and K2 respectively. The capacitance of the resulting ca ...

A parallel plate capacitor of plate area A and separation d is charged to potential difference V and then the battery is disconnected. A slab of dielectric constant K is then inserted between the plates of capacitor so as to ...

A dielectric slab of thickness d is inserted in a parallel plate capacitor whose negative plate is at x=0 and positive plate at x=3d. The slab is equidistant from the plates. The capacitor is given some charge. As x g ...

A parallel plate capacitor of area A, plate separation d and capacitance C is filled with three different dielectric materials having dielectric constants k1, k2 and k3 as shown. If the single dielectric material is to be use ...

Two parallel plate capacitors of capacitances C and 2C are connected in parallel and charged to a potential difference to V. The battery is then disconnected and the region between the plates of the capacitor C is completely ...

Two copper spheres of same radii one hollow and other solid are charged to same potential then ...

The magnitude of electric field in the annular region of a charged cylindrical capacitor, ...

A parallel plate capacitor (Area A and distance d) is initially charged to potential difference V. Keeping the charge constant, the separation between the plates is increased by l. The new pot. diff. is ...

Two identical metal plates are given positive charge Q1 and Q2 (<Q1). If they are now brought close together to form a parallel plate capacitor with capacitance C, the potential difference between them is ...

Five identical capacitor plates, each of area A, are arranged such that adjacent plates are at a distance d apart, the plates are connected to a source of emf V as shown in figure. The charge on plate 4 is *Image* ...

Two fixed, equal, positive charges, each of magnitude 5×10-5 C are located at point A and B separated by a distance 6 m. An equal and opposite charge moves towards them along the line COD, the perpendicular bisector of the l ...

Three point charges q, 2q and 8q are to be placed on a 9 cm long straight line. coordinates of the ends of line are (0,0) and (9,0). For minimum potential energy the coordinates of the charges are (in order of q, 2q, 8q) ...

Two equal negative charges -q are fixed at points (0,a) and (0,-a) on the y-axis. A positive charge Q is released from rest at the point (2a,0) on the x-axis. The charge Q will ...

Three charges Q, +q and -q are placed at the vertices of a right-angled isosceles triangle as shown. The net electrostatic energy of the configuration is zero if Q is equal to *Image* ...

Two point charges +q and -q are held fixed at (-d,0) and (d,0) respectively of a x-y coordinate system. Then ...

Two equal point charges are fixed at x=-a and x=+a on the x-axis. Another point charge Q is placed at the origin. The change in the electrical potential energy of Q, when it is displaced by a small distance x along th ...

Two fixed, equal, positive charges, each of magnitude 5×10-5 C are located at point A and B separated by a distance 6 m. An equal and opposite charge moves towards them along the line COD, the perpendicular bisector of the l ...

Three point charges q, 2q and 8q are to be placed on a 9 cm long straight line. coordinates of the ends of line are (0,0) and (9,0). For minimum potential energy the coordinates of the charges are (in order of q, 2q, 8q) ...

Two equal negative charges -q are fixed at points (0,a) and (0,-a) on the y-axis. A positive charge Q is released from rest at the point (2a,0) on the x-axis. The charge Q will ...

Three charges Q, +q and -q are placed at the vertices of a right-angled isosceles triangle as shown. The net electrostatic energy of the configuration is zero if Q is equal to *Image* ...

Two point charges +q and -q are held fixed at (-d,0) and (d,0) respectively of a x-y coordinate system. Then ...

Two equal point charges are fixed at x=-a and x=+a on the x-axis. Another point charge Q is placed at the origin. The change in the electrical potential energy of Q, when it is displaced by a small distance x along th ...

The bhor radius of the first orbit of H atom is 0.503A° units.The radius of the third orbit will be ...

A reversible adiabatic expansion is an ...

The pH of 0.1 M NH4OH (Kb=1.8*105 is ...

Which of the following is a "superacid" ...

A hollow metal sphere of radius 5 cm is charged such that the potential on its surface is 10 volts. The potential at the centre of the sphere is ...

Two identical thin rings, each of radius R metres, are coaxially placed a distance R metres apart. If Q1 and Q2 are the charges uniformly spread on the two rings, the work done in moving a charge q from the centre of one ring ...

A charge +q is fixed at each of the points x=x0, x=3x0, x=5x0 ......∞ on the x-axis and a charge -q is fixed at each points x=2x0, x=4x0, x=6x0, ........ Here x0 is a positive quantity. The potential ...

A non conducting ring of radius 0.5 m carries a total charge of 1.11×10-10 C is distributed non-uniformly on its circumference producing an electric field everywhere in space. The value of the integral l=∞∫l=0-E. ...