Recent questions tagged chapter2

0 votes

0 answers

In the electric field of a point charge q, a certain charge is carried from point A to B, C, D and E. Then the work done

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

Three concentric spherical shells have radii a, b and c (a < b < c) and have surface charge densities σ, – σ and σ respectively. If `V_A , V_B` and `V_C` denote the Potentials of the three shells, then for c = a + b, we

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

The electric Potential at a point P (x, y, z) is given by `V = –x^2y – xz^3 + 4` The electric field `vecE` at that point is

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

Three particles, each having a charge of 10µc are placed at the corners of an equilateral triangle of side 10 cm. The electrostatic potential energy of the system is (Given `1/(4piepsilon_o) = 9 × 10^9 N.m^2' /'c^2`)

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

Four equal charges Q are placed at the four corners of a square of each side is ‘a’. Workdone in removing a charge - Q from its centre to infinity is

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

Two charged spheres of radii R1 and R2 having equal surface charge density. The ratio of their potential is

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

Two equal charges q are placed at a distance of 2a and a third charge -2q is placed at the midpoint. The potential energy of the system is

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

Two point charges 100µc and 5µc are placed at points A and B respectively with AB = 40 cm. The work done by external force in displacing the charge 5µc from B to C where BC = 30 cm, angle `ABC = pi/ 2` and `1/(4piepsilon_o)=9xx 10^9 Nm^2' /'c^2`

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

The electric potential V is given as a function of distance x (metre) by `V = (5x ^2 + 10x – 9)` volt. Value of electric field at `x = 1` is

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

A sphere of radius 1cm has potential of 8000 v, then energy density near its surfacewill be

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

If a charged spherical conductor of radius 10cm has potential v at a point distant 5 cmfrom its centre, then the potential at a point distant 15cm from the centre will be

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

Electric charges of `+10µc, 5µc, –3µc and 8µc` are placed at the corners of a square of side `sqrt2`m the potential at the centre of the square is

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

Two positive point charges of 12µc and 8µc are 10 cm apart each other. The work done in bringing them 4cm closer is

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

The displacement of a charge Q in the electric field `vecE = e_1hat i + e_2 hatj + e_3 hatk` is `vecr = ahati + bhat j` . The work done is

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

If an electron moves from rest from a point at which potential is 50 volt to another point at which potential is 70 volt, then its kinetic energy in the final state will be

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

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

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

Two electric charges 12µc and –6µc are placed 20cm apart in air. There will be a point P on the line joining these charges and outside the region between them, at which the electric potential is zero. The distance of P from –6µc charge is

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

In the rectangle, shown below, the two corners have charges `q_1 = –5µc` and `q_2 = +2.0µc` . The work done in moving a charge 3µc from B to A is (`take 1/(4piepsilon_o= 10^(10) Nm^2 '/'c^2`)

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

4 Points charges each +q is placed on the circumference of a circle of diameter 2d in such a way that they form a square. The potential at the centre is

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

Three identical charges each of 2µc are placed at the vertices of a triangle ABC as shown in the figure. If AB + AC = 12 cm and AB . AC = `32cm^2` , the potential energy of the charge at A is

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

Recent questions tagged chapter2

Categories