Electric Field and Potential Quiz

What is the relationship between Electric Flux and the charge enclosed?

• As the charge enclosed increases, the flux decreases.

• As the charge enclosed decreases, the flux increases.

• As the charge enclosed increases, the flux increases.

• As the charge enclosed decreases, the flux decreases.

What is the relationship between potential difference and electric potential?

• Voltage is the energy per unit charge at some point in space.

• Voltage is the electricity per unit charge at some point in space.

If you applied a voltage across two points A and B, how would you calculate the electric field between those points?

• Add the distance between the points by the voltage.

• Multiply the distance between the points by the voltage.

• Subtract the distance between the points by the voltage.

• Divide the distance between the points by the voltage.

Voltage is the amount of electric potential energy per one coulomb of charge.

• True

• False

The difference in electrical potential energy between two places is called _____.

• current

• voltage

• resistance

QA and QB are two charges creating an electric field. Based on the electric field lines, what can you conclude?

• QA is negative and QB is negative

• QA is positive and QB is positive

• QA is negative and QB is positive

• QA is positive and QB is negative

Every proton in the universe is surrounded by its own both _____ and ______.

• electric field, gravitational

• electric field

• gravitational, electric field

If you double the voltage across the plates of a capacitor, how is the stored energy affected?

• Stored energy will increase four times.

• Stored energy will decrease four times

You insert a dielectric into an air-filled capacitor. How does this affect the energy stored in the capacitor?

• Energy stored in the capacitor will decrease.

• Energy stored in the capacitor will still the same.

• Energy stored in the capacitor will increase.

In a parallel-plate capacitor, how can the capacitance be increased?

• insert dielectric

• do nothing