POP QUIZ- INDUCTOR

What is the total inductance when inductors are connected in series?

• 1/L_Total = 1 / L₁ + 1 / L₂ + 1 / L₃

• L_Total = L₁ + L₂ + L₃

• L_Total = ½ LI²

• L_Total = L₁ x L₂ x L₃

What is the unit of inductance in the International System of Units?

• Henry

• Ohm

• Watt

• Farad

The total inductance of three inductors (3H, 6H and 2H) connected in series is ___ Henrys.

• 9

• 12

• 11

• 10

What is the symbol for Inductance?

• I

• Z

• X_L

• L

The most practical way to change the magnetic field of an inductor is to increase or decrease the current through the coil.

• false

• True

What is the basic structure of an inductor?

• A flat metal sheet

• A coil of wire

• A solid block of iron

• A series of capacitors

An inductor ____.

• Stores energy in a magnetic field

• Opposes any change in current

• Provides a specific value of inductance

• All of the above

Energy stored in an inductor is:

• 1/2 L²I²

• 1/2 LI²

• 1/2 CV²

• 1/3 LI²

There are two 10H inductors in parallel. Total inductance is...

• 15

• 20

• 5

• 10

Unit of energy of inductors

• Farad

• Joules

• Ohm

• Watt