A charge q is placed at 1 2 1

Asked by admin @ 23/08/2021 in Physics viewed by 404 People

A charge q is placed at (1,2,1) and another charge -q is placed at (0,1,0) such that they form an electric dipole . There exists a uniform electric field E=2icap. calculate the torque experienced by the dipole

(answer is 2√2q N-m)

Answered by admin @ 23/08/2021

Answer:

$\tau = 2\sqrt2 q$

Explanation:

As we know that dipole moment of the dipole is given as

$\vec P = q\vec a$

here we know that

$\vec a = r_+ - r_-$

$\vec a = (1\hat i + 2\hat j + 1\hat k) - (0\hat i + 1\hat j + 0\hat k)$

$\vec a = 1\hat i + 1\hat j + 1\hat k$

now we know that

$\vec P = q(1\hat i + 1\hat j + 1\hat k)$

now torque due to electric field on dipole is given as

$\tau = \vec P \times \vec E$

$\tau = q(1\hat i + 1\hat j + 1\hat k) \times (2\hat i)$

$\tau = q(-2\hat k + 2\hat j)$

$\tau = 2\sqrt2 q$

#Learn

Topic : Torque on dipole in uniform electric field

brainly.in/question/8041957

Two charges 4q and q are placed 30cm apart

Asked by admin @ 17/08/2021 in Physics viewed by 350 persons

two point charges +4q and +q are placed 30cm apart.At what point on the line joining them the electric field is zero?

Five point charges each of charge q are placed

Asked by admin @ 17/08/2021 in Physics viewed by 309 persons

Five point charges each of charge q are placed on five vertices of regular hexagon of side l

Equal charges q are placed at the four corners

Asked by admin @ 13/08/2021 in Physics viewed by 278 persons

Equal charges Q are placed at the four corners A, B, C, D of a square of length a. The magnitude of the force on the charge at B will …

Two point electric charges of values q and 2q

Asked by admin @ 20/08/2021 in Physics viewed by 307 persons

⦁ Two point charges of values ‘q’ and ‘2q’ are kept at a distance ‘d’ apart from each other in air. A third charge ‘Q’ is to be kept along …

Two identical pith balls each carrying a charge q

Asked by admin @ 17/08/2021 in Physics viewed by 366 persons

Two identical pith balls,each carrying a charge q, are suspended from a common point by two strings of equal length ( L). FIND THE MASS OF EACH BALL. if the …

Two small spheres each carrying a charge q

Asked by admin @ 31/08/2021 in Math viewed by 364 persons

2 small spheres each carrying a charge q are placed r m apart and they interact with a force f. if one of the sphere is taken around the oyher …

Three charges are placed at the corners of a square

Asked by maham237 @ 08/01/2021 in Physics viewed by 263 persons

Consider 4 charges placed at the corners of a square with side 1.25m as shown. What are the magnitude and direction of the electrostatic force on Q1 resulring from other …

Two charges q1 and q2 are placed 30cm apart

Asked by admin @ 11/08/2021 in Physics viewed by 280 persons

Two charges q1 and q2 are placed 30cm apart. A third charge q3 is moved along the arc of a circle of radius 40cm frm C to D. The change …

1 coulomb charge is equal to how many electrons

Asked by admin @ 12/08/2021 in Physics viewed by 298 persons

1 coulomb is equal to How many electrons?

Two point charges placed at a distance r

Asked by admin @ 25/08/2021 in Physics viewed by 363 persons

Two point charges placed at a certain distance r in air exert a force F on each other. Then the distance R at which these charges will exert the same …

Two identical point charges q each are kept 2m

Asked by admin @ 17/08/2021 in Physics viewed by 383 persons

Two identical point charges q each are kept 2m apart in air. A third point charges Q of unknown magnitude and sign is placed on the line joining the charges …

Two particles of equal mass m and charge q

Asked by admin @ 13/08/2021 in Physics viewed by 313 persons

two particle of equal mass m and charge q are placed at a distance of 16 cm . They do not experience any force . The value of q/m is

2 1 practice absolute value equations and inequalities answer key

Asked by admin @ 10/11/2021 in Mathematics viewed by 369 persons

Solve each absolute value equation or inequality and choose the correct answer from the choices provided 1. [X]+5=18 A.5 or-5 B.13 or-13 C. 18 or -18 D. 23 or-23 2. …