Phys 02 Final Exam (Summer)

Which of the following is negatively charged?

• Proton

• Electron

• Neutron

• Nucleus

What is the unit of electric current?

• Volt

• Ampere

• Ohm

• Watt

What is the formula for Ohm’s Law?

• V = R + I

• V = IR

• I = R/V

• P = IV

Charging a balloon by rubbing it on your hair is an example of:

• Charging by friction

• Charging by induction

• Charging by conduction

• Charging by repulsion

In a neutral object, the number of protons is equal to the number of:

• Neutrons

• Ions

• Electrons

• Charges

What is the unit of resistance?

• Ampere

• Volt

• Ohm

• Watt

Which method of charging involves contact?

• Induction

• Friction

• Conduction

• Insulation

In a series circuit, the current is:

• Different in each resistor

• The same throughout

• Doubled at each point

• Halved in each loop

What happens to current when resistance increases (voltage constant)?

• It decreases

• It increases

• It becomes zero

• It remains the same

If V = 10 V and R = 5 Ω, what is the current?

• 0.5 A

• 2 A

• 5 A

• 15 A