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Determine the overall current in the series circuit shown below.

Mathematical Equivalence

ON

Which of these everyday objects is a good electrical insulator?

​ (a)  

• eraser
• needle
• nail
• knife

Which of the following statements about the electromagnetic force is true?

• is the force that binds nuclear particles

• causes opposite charges to attract each other

• acts over a very short range

• is the strongest of the fundamental forces.

“Doing the wave” is a common activity in large football stadiums. What type of wave is this?

• longitudinal

• transverse

• electromagnetic

• compression

Sound in air can best be described as which of the following type of wave?

• longitudinal

• transverse

• electromagnetic

• sinusoidal

What type of circuit is depicted here?

• parallel

• series

• combined

• none of these

Electric fields are ____ when the field lines are farther apart.

• smaller

• bigger

• stronger

• weaker

The negatively charged particle that orbits an atom's nucleus is the _____.

• electron

• proton

• neutron

• positron

The units of electric charge are _____.

• k

• C

• q

• N

What property of this wave is represented by the letter "A"

• amplitude

• crest

• trough

• wavelength