Nazzario ER 4

How does an inductor behave in a circuit when the current is turned on?

• reverse battery

• wire

• capacitor

• resistor

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

How does an inductor behave in a circuit when the current has been on for a long time?

• reverse battery

• wire

• capacitor

• resistor

Inductor 1 has 5 mH and inductor 2 has 10 mH. Which inductor reaches 50% of the max current fastest when connected to a circuit?

• inductor 1

• inductor 2

• same time

• not enough info

There are 2 LR circuits. Circuit 1 has R and circuit 2 has 2R. Which circuit reaches 50% of max current faster?

• circuit 1

• circuit 2

• same time

• not enough info

An ideal LC circuit starts with a fully charged capacitor at t = 0. What is the form of the function of current in the circuit?

• sin(wt)

• cos(wt)

• e^-(t/τ)

• 1 - e^-(t/τ)

Tags

NGSS.HS-PS4-1

For AC LRC circuits the power factor is always

• less than 1

• less than or equal to 1

• less than or equal to 1/2

• greater than or equal to 1

Why do the voltages in an AC LRC circuit not add up to zero? (mult-select)

• They do add to zero by Kirchhoff's rules

• The inductor's voltage is out of phase

• The capacitor's voltage is out of phase

• The resistor's voltage is out of phase

How many Maxwell's Equations are there?

• 1

• 2

• 3

• 4

• 5

Maxwell's Addition to Ampere's Law says...

• a changing electric field produces a magnetic field

• a changing magnetic field produces an electric field

• magnetic monopoles do not exist

• electric field is proportional to charge enclosed

Tags

NGSS.HS-PS2-5

What is between the plates of a charging capacitor? (multi-select)

• Electric field

• Magnetic field

• Current

• Inductance