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Hw: All Chapter 2 problems and exercises

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Page 1: Hw: All Chapter 2 problems and exercises. Example 1: Electric field of a point charge is directly radially away from or toward the charge. Example 2:

Hw: All Chapter 2 problems and exercises

Page 2: Hw: All Chapter 2 problems and exercises. Example 1: Electric field of a point charge is directly radially away from or toward the charge. Example 2:

Example 1: Electric field of a point charge is directly radially away from or toward the charge.

rr

qE ˆ

4

12

0

Example 2: Electric field of a dipole

Page 3: Hw: All Chapter 2 problems and exercises. Example 1: Electric field of a point charge is directly radially away from or toward the charge. Example 2:

Example 3: Electric field at the center of a charged ring

Think first!(before you start to do calculations)

0E

Page 4: Hw: All Chapter 2 problems and exercises. Example 1: Electric field of a point charge is directly radially away from or toward the charge. Example 2:

Example 5: Find the electric field at the center of a semi-circle of radius R, if a charge Q is uniformly spread over the semi-circle.

OxiR

QE

2

022

Page 5: Hw: All Chapter 2 problems and exercises. Example 1: Electric field of a point charge is directly radially away from or toward the charge. Example 2:

Example 4: Electric field on ring’s axis

ziRz

QzE

2322

0 )(4

1

z

Page 6: Hw: All Chapter 2 problems and exercises. Example 1: Electric field of a point charge is directly radially away from or toward the charge. Example 2:

Example 6: Electric field on disk’s axis

2

122

32 )(

1

)( cxcx

xdx

ziRz

z

z

zE

22202

ziz

QEzRz

2

04

10,

z

z

z

iEz

iEz

iz

zERz

0

0

0

20

20

2

z

Page 7: Hw: All Chapter 2 problems and exercises. Example 1: Electric field of a point charge is directly radially away from or toward the charge. Example 2:

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