complex circuits

The total resistance in this circuit is 

• 100 ohms
• 450 ohms
• 400 ohms
• 30 ohms

Tags

CCSS.7.NS.A.1D

As resistors are added in series to a circuit, the total resistance will...

• increase
• decrease
• stay the same

The total resistance of this circuit is 

• 25.7 ohms
• 315 ohms
• 324 ohms
• 90 ohms

The current going through the 45 ohm resistor is 

• 0.05 amps
• 0.2 amps
• 0.1 amps
• 5 amps

Find the total resistance.

• 12Ω

• 6Ω

• 18Ω

Tags

CCSS.8.EE.C.7B

What current flows through the battery?

• I= 0.18 A

• I= 0.15 A

• I= 1.5 A

Find I total.

• 1A

• 2A

• 4A

• 12A

If I add more light bulbs to a series circuit what happens?

• The current speeds up and the lights get brighter
• The current slows down and the lights dim lower
• The current speeds up and the lights dim lower
• The current slows down and the lights get brighter

In a parallel circuit, if one connection is broken, all of the connections stop working.

• True
• False

The total current through this circuit is

• 0.02 amps
• 0.09 amps
• 50 amps
• 9 amps