Mr K Physics Test Ch 18 Circuits

Two resistors are wired in series. In another circuit, the same two resistors are wired in parallel. In which circuit is the equivalent resistance greater, or are they the same?

• in the series circuit

• in the parallel circuit

• the equivalent distance is the same in both circuits

• there is no equivalent resistance

A 5 Ω, a 10 Ω, and a 15 Ω resistor are connected in series. Which resistor has the most current in it?

• All have an equal (I) current

• The 5 Ω resistor has the most current

• The 15 Ω resistor has the most current

• The 10 Ω resistor has the most current

A 5 Ω, a 10 Ω, and a 15 Ω resistor are connected in parallel. Which resistor has the most current in it?

• All have an equal (I) current

• The 5 Ω resistor has the most current

• The 15 Ω resistor has the most current

• The 10 Ω resistor has the most current

A 5 Ω, a 10 Ω, and a 15 Ω resistor are connected in series. Which resistor has the largest potential difference (V) across it?

• All have equal potential difference (V)

• The 5 Ω resistor has the largest potential difference

• The 10 Ω resistor has the largest potential difference

• The 15 Ω resistor has the largest potential difference

A 5 Ω, a 10 Ω, and a 15 Ω resistor are connected in parallel. Which resistor has the largest potential difference (V) across it?

• All have equal potential difference (V)

• The 5 Ω resistor has the largest potential difference

• The 10 Ω resistor has the largest potential difference

• The 15 Ω resistor has the largest potential difference

True or False: When two charges interact, there is an electric force between them.

• True

• False

What is electrical potential energy?

• potential energy associated with a charge due to its position in an electric field

• kinetic energy associated with a charge due to its position in an electric field

• the rate at which charges flow through an area

• potential energy associated with a field due to its position to a force

The change in electrical potential energy is positive if:

• the charge is negative and moves with the field

• the charge is positive and moves with the field

• the charge is negative and moves against the field

• the charge is positive and moves to the right

What is the formula for electrical potential energy in a uniform electric field?

• PEelectric = -qEd

• PEelectric = -q/Ed

• PEelectric = -q + Ed

• PEelectric = -qE/d

What is electric current?

• the rate at which charges flow through an area

• potential energy associated with a charge due to its position in an electric field

• displacement from the reference point in the direction of the field

• the opposition to the flow of charge