Current Electricity

What is current?

• It is the flow of atoms per unit time.

• It is the acceleration of charge flow.

• It is the rate of flow of electric charge.

• It is the work done of a charge in a circuit.

Which arrow represents the direction of electron flow?

• arrow 1

• arrow 2

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Which arrow represents the direction of conventional current?

• arrow 1

• arrow 2

Tags

NGSS.HS-PS2-5

Which of the following statements is true?

• Electrons flow through the bulb from X to Y.

• Electrons flow through the bulb from Y to X.

What does this instrument measure? How should it be connected in a circuit?

• This instrument measures current. It should be connected in parallel.

• This instrument measures current. It should be connected in series.

• This instrument measures potential difference. It should be connected in parallel.

• This instrument measures electromotive force. It should be connected in parallel.

Tags

NGSS.HS-PS2-5

What does this instrument measure? How should it be connected in a circuit?

• This instrument measures current. It should be connected in parallel.

• This instrument measures current. It should be connected in series.

• This instrument measures potential difference. It should be connected in parallel.

• This instrument measures electromotive force. It should be connected in series.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What is the formula of current?

• I = Q x t

• I = Q / t

• Q = I / t

What is electromotive force?

• The work done in driving a unit charge around a complete circuit.

• The work done in driving a unit charge through the component.

What is potential difference?

• The work done in driving a unit charge around a complete circuit.

• The work done in driving a unit charge through the component.

What is the formula of voltage?

• V = W x Q

• V = W / Q

• W = V / Q