Module 4

Question 1

It is defined as the area where electrical force can be experienced.

Answer 1

Electric Field

Question 2

A charged body creates an ____________ in the space around it.

Answer 2

Electrical Field

Question 3

A charged particle can _______ the properties of space around them.

Answer 3

modify

Question 4

It is defined as the force per unit charge experienced by a stationary point charge in a given location in a field.

Answer 4

Electric Field

Question 5

What is the formula for Electric Field?

Answer 5

E = F/q = kq/r^2

Question 6

The electric field points _______ form a positive charge.

Answer 6

away (positive = away)

Question 7

The electric field points _______ form a negative charge.

Answer 7

toward (negative = toward)

Question 8

The electric field strength/magnitude _____ with distance.

Answer 8

decreases (magnitude is inversely proportional to distance)

Question 9

First introduced the concept of field lines.

Answer 9

Michael Faraday

Question 10

It is an imaginary line or curve drawn through a region of empty space so that its tangent at any point is in the direction of the electric field vector at that point.

Answer 10

Electric Field Line

Question 11

The combination of two equal charges with opposite signs.

Answer 11

Electric DipoleT

Question 12

These are curved and are directed from the positive charge to the negative charge.

Answer 12

Electric Field Lines

Question 13

The direction of the electric field at any point is ______ to the field of line at any point.

Answer 13

tangent

Question 14

These indicates the direction of the electric field; the field points in the direction tangent to the field line at any point.

Answer 14

Electric Field Lines

Question 15

The lines are drawn so that the magnitude of the electric field (E) is ___________ to the number of lines crossing unit area perpendicular to the lines.

Answer 15

proportional

Question 16

The closer together the lines, the ________ the field.

Answer 16

stronger (closer = stronger)

Question 17

Electric field lines start on _________ charges.

Answer 17

positive (positive = start)

Question 18

Electric field lines end on _________ charges.

Answer 18

negative (negative = end)

Question 19

In electric field lines, the number of starting (leaving positive) or ending (entering negative) charges is proportional to the ___________ of the charge.

Answer 19

magnitude

Question 20

An electron moves in a _________ electric field.

Answer 20

uniform

Question 21

A positive charge goes ____________ an electric field.

Answer 21

along (positive = along)

Question 22

A negative charge goes ____________ an electric field.

Answer 22

against (negative = against)

Question 23

If a charge is positive, the force on the test charge is directed _________ from the charge.

Answer 23

away (positive = away)

Question 24

If a charge is negative, the force on the test charge is directed _________ from the charge.

Answer 24

toward (negative = toward)

Question 25

If a charge is positive, the electric field points radially ________ from the charge.

Answer 25

outward (positive = outward)

Question 26

If a charge is negative, the electric field points radially ________ from the charge.

Answer 26

inward (negative = inward)

Question 27

Formula for Electric Field of a Point Charge:

Answer 27

E = k|q|/r^2