An infinite line of charge with linear density λ1 = -7.8μC/m is positioned along the axis of a thick conducting cylindrical shell of inner radius a = 2.9 cm and outer radius b = 5.3 cm and infinite length. The conducting cylindrical shell is uniformly charged with a linear charge density λ 2 = 5.4 μC/m. 1)What is Ex(P), the electric field at point P, located at (x, y) = (-10.1 cm, 0 cm) ?

The electric field at point P is

Explanation:

Given that,

Linear density

Linear density

Inner radius a=2.9 cm

Outer radius = 5.3 cm

We need to calculate the electric field at point P

Using formula of electric field

Put the value into the formula

Hence, The electric field at point P is

answer: the exterior temperature of commercial jet planes as they leave the stratosphere and return to the ground increases steadily.

explanation:

the lower most layer of atmosphere is troposphere which extends from 0 to 12 km above the surface of the earth. the temperature initially decreases as distance is increased from the earth's surface. commercial jets fly in lower part of the stratosphere. the stratosphere extends upto 50 km. the temperature in stratosphere starts rising again due to presence of ozone which traps the uv rays.

thus, when the planes leave the stratosphere and return to the ground, the exterior temperature increases steadily.