Question 1

What is the direction of the electric field lines around a positive point charge?

Accepted Answer

Radially outward

Answer

In a straight line

Answer

Tangentially

Answer

Radially inward

Question 2

What is the formula for electric field strength due to a point charge?

Accepted Answer

E = k * (Q/r^2)

Answer

E = k * (Q/r^3)

Answer

E = k * (Q/r)

Answer

E = k * (Q*r)

Answer

E = k * (Q*r^2)

Question 3

What is the unit of electric field strength?

Accepted Answer

Newtons per coulomb (N/C)

Answer

Coulombs (C)

Answer

Amperes (A)

Answer

Volts (V)

Answer

Meters per second squared (m/s^2)

Question 4

What is the formula for electric flux?

Accepted Answer

Φ = E * A * cos(θ)

Answer

Φ = E * A

Answer

Φ = E * A * tan(θ)

Answer

Φ = E * A * sin(θ)

Answer

Φ = E / A

Question 5

What is the relationship between electric field strength and electric potential?

Accepted Answer

E = -∇V

Answer

E = ∇V

Answer

E = V/I

Answer

E = V/r

Answer

E = V^2

Question 6

What is the definition of electric potential?

Accepted Answer

The amount of potential energy per unit charge

Answer

The amount of resistance per unit length

Answer

The amount of electric field per unit charge

Answer

The amount of charge per unit area

Answer

The amount of current flow per unit time

Question 7

What is the electric field?

Accepted Answer

A region around a charged object where it experiences a force due to other charges

Answer

The resistance of a wire

Answer

The amount of charge on an object

Answer

The speed of electric current

Question 8

What is electric flux?

Accepted Answer

The measure of the quantity of electric field lines passing through a given area

Answer

The velocity of charged particles

Answer

The strength of an electric field

Answer

The charge of an object

Question 9

What is the equation for electric field strength?

Accepted Answer

E = F/q

Answer

E = F - q

Answer

E = F * q

Answer

E = F + q

Question 10

What is electric potential difference?

Accepted Answer

The change in electric potential energy per unit charge between two points in an electric field

Answer

The flow of electric current

Answer

The resistance of a wire

Answer

The charge of an object

Question 11

What is electric potential?

Accepted Answer

The amount of work needed to move a unit positive charge from a reference point to a given point in an electric field

Answer

The charge of an object

Answer

The flow of electric current

Answer

The strength of an electric field

Question 12

What is the formula for electric potential?

Accepted Answer

V = k * Q / r

Answer

V = k * Q * r^2

Answer

V = k * Q * r

Answer

V = k / Q * r

Question 13

What is electric potential energy?

Accepted Answer

The energy possessed by a charged object due to its position in an electric field

Answer

The resistance of a wire

Answer

The rate at which electrical energy is transferred

Answer

The amount of charge on an object

Question 14

What is the formula for calculating electric field strength?

Accepted Answer

E = k * |Q| / r^2

Answer

E = k * Q / r^2

Answer

E = k * Q * r^2

Answer

E = k / |Q| * r^2

Question 15

What is the unit of electric field strength?

Accepted Answer

N/C

Answer

Coulomb

Answer

Volt

Answer

Joule

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