Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

Quiz 1 001 The figure shows a portion of an infinitely long, concentric cable in

ID: 2028514 • Letter: Q

Question

Quiz 1

001

The figure shows a portion of an infinitely long, concentric cable in cross section. The inner conductor carries a charge of 7.5 nC/m and the outer conductor is uncharged.

What is the electric field 0.7 cm from the central axis? The permittivity of free space is 8.85419 × 1012 C2/N · m2.

002

What is the electric field at 2.3 cm from the central axis?

003

What is the direction of the electric field at 3.7 cm from the central axis?

1. Undetermined, since the field is zero. correct

2. Points radially outward.

3. Points radially inward.

4. The electric field is not a vector and there- fore has no direction.

004

What is the electric field at 14 cm from thecentral axis?

005

What is the surface charge density inside the hollow cylinder?

006

What is the surface charge density outside the hollow cylinder?

Quiz 2

001

A sphere with radius 65 cm has its center at the origin. Equal charges of 5 C are placed at 90 intervals along the equator of the sphere. The Coulomb constant is 8.99 × 109 N · m2/C2. What is the electric potential at the origin?

002

What is the electric potential at the north pole?

003

An electric field is given by Ex = (2 kN/C) x3. Find the potential difference between the points on the x-axis at x = 1 m and x = 3 m.

004

On planet Tehar, the free-fall acceleration is the same as as that of Earth, but there is also a strong downward electric field that is uniform close to the planet’s surface. A 3.66 kg ball having a charge of 2.4 C is thrown upward at a speed of 16.5 m/s, and it hits the ground after an interval of 5.58 s. The acceleration of gravity is 9.8 m/s2 . What is the potential difference between the starting point and the top point of the trajectory?

Quiz 1 001 The figure shows a portion of an infinitely long, concentric cable in cross section. The inner conductor carries a charge of 7.5 nC/m and the outer conductor is uncharged. What is the electric field 0.7 cm from the central axis? The permittivity of free space is 8.85419 10?12 C2/N m2. 002 What is the electric field at 2.3 cm from the central axis? 003 What is the direction of the electric field at 3.7 cm from the central axis? 1. Undetermined, since the field is zero. correct 2. Points radially outward. 3. Points radially inward. 4. The electric field is not a vector and there- fore has no direction. 004 What is the electric field at 14 cm from thecentral axis? 005 What is the surface charge density inside the hollow cylinder? 006 What is the surface charge density outside the hollow cylinder? Quiz 2 001 A sphere with radius 65 cm has its center at the origin. Equal charges of 5 ?C are placed at 90 intervals along the equator of the sphere. The Coulomb constant is 8.99 109 N m2/C2. What is the electric potential at the origin? 002 What is the electric potential at the north pole? 003 An electric field is given by Ex = (2 kN/C) x3. Find the potential difference between the points on the x-axis at x = 1 m and x = 3 m. 004 On planet Tehar, the free-fall acceleration is the same as as that of Earth, but there is also a strong downward electric field that is uniform close to the planet?s surface. A 3.66 kg ball having a charge of 2.4 ?C is thrown upward at a speed of 16.5 m/s, and it hits the ground after an interval of 5.58 s. The acceleration of gravity is 9.8 m/s2 . What is the potential difference between the starting point and the top point of the trajectory

Explanation / Answer

here is the quiz 2 Download link: http://www.megaupload.com/?d=F7W39BPH quiz 3 Download link: http://www.megaupload.com/?d=LV9VIYQW quiz 4 Download link: http://www.megaupload.com/?d=H0TQVKI0 quiz 6 Download link: http://www.megaupload.com/?d=GJJ9OU93