Circuits Physics

What is the unit for resistance?

• volts

• amps

• coulombs

• ohms

What is the Voltage of a circuit that has a resistance of 5 Ω and a current of 2 A?

• 25 V

• 10 V

• 2.5 V

• 0.4 V

DC stands for ____ and is used in batteries.

• Distant Current

• Don't Current

• Direct Current

• Distributed current

In the voltmeter below, if the reading for V₂ is 7.0 V, what would be the reading for V₁?

• 5.0 V, because of Kirchhoff's conservation of energy law

• 5.0 V, because of Kirchhoff's conservation of current law

• 7.0 V, because of Kirchhoff's conservation of energy law

• 7.0 V, because of Kirchhoff's conservation of current law

Tags

NGSS.HS-PS2-5

In the ammeter below, if the readings for A₁ and A₂ are 250 mA and 100 mA respectively, what is the reading for A₃?

• 350 mA, because of Kirchhoff's conservation of energy law

• 350 mA, because of Kirchhoff's conservation of current law

• 350 mA, because of Kirchhoff's conservation of current law

• 150 mA, because of Kirchhoff's conservation of current law

A battery rated at 6.0 V delivers a current of 200 mA to a small light globe. How much electrical energy does the globe transfer into light and heat per second?

• 1200 J s^–1

• 12 J s^–1

• 1.2J s^–1

• 0.12 J s^–1

Tags

NGSS.HS-PS3-2

Compared with an Ohmic device, a non-Ohmic device has:

• constant resistance

• constant current

• variable resistance

• variable current

What is the conventional current in a wire in a circuit?

• The flow of electrons from positive to negative

• The flow of negative charges from negative to positive

• The flow of protons from negative to positive

• The flow of positive charges from positive to negative

Potential is best described as:

• rate of energy transfer between points in a circuit.

• current flow

• the amount of potential energy per charge.

• the potential energy in a circuit