SERIES & PARALLEL CIRCUITS

Calculate the effective resistance of the resistors

• 30 ohm

• 35 ohm

• 40 ohm

• 45 ohm

Calculate effective resistance of the resistors

• 2.67 ohm

• 2..72 ohm

• 2.85 ohm

• 2.93 ohm

Calculate effective resistance of the resistors

• 40 ohm

• 38 ohm

• 36 ohm

• 34 ohm

Calculate effective resistance of resistors

• 2.8 ohm

• 3.0 ohm

• 3.2 ohm

• 3.4 ohm

Pick the correct sentence.

• This circuit will work because it is a closed circuit.
• Energy will freely flow in this circuit.
• This circuit will not work because there is no energy source.
• This circuit will not work because there is no switch.

Tags

NGSS.MS-ETS1-2

The picture shows an electrical circuit. This circuit is a series circuit because: 

• It has 3 light bulbs.
• The same current flows through all three light bulbs.
• It uses a single battery.
• The electrical current is divided between the three light bulbs.

What will happen if one light bulb is removed from this circuit?

• The other bulbs will go out.
• The other bulbs will stay on
• The other bulbs will get dimmer.
• The battery will become stronger.

Which of the two circuits would have the brightest bulbs? 

• A
• B

Tags

NGSS.MS-ETS1-2

NGSS.MS-PS3-4

When you remove a bulb from a three bulb circuit, and the other two bulbs go off, then the bulbs must have been connected in __________.

• parallel
• series
• open
• closed

Does this diagram represent a series or parallel circuit?

• series circuit
• parallel circuit