Power in Circuits Video Lessons

Video Thumbnail

Concept

Problem: The five identical bulbs in the following figure are all glowing. The battery is idealWhat is the order of brightness of the bulbs, from brightest to dimmest? Some may be equal.

FREE Expert Solution

Equivalent resistance for series resistors:

Req=R1+R2

Equivalent resistance for parallel resistors:

1Req=1R1+1R2

Ohm's law:

V=iR

Connecting two resistors with equal resistance in parallel halves their resistance.

Connecting two resistors with equal resistance in series doubles their resistance.

The resistance of the branch ST is equal to 2R.

98% (494 ratings)
View Complete Written Solution
Problem Details

The five identical bulbs in the following figure are all glowing. The battery is ideal

What is the order of brightness of the bulbs, from brightest to dimmest? Some may be equal.

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Power in Circuits concept. You can view video lessons to learn Power in Circuits. Or if you need more Power in Circuits practice, you can also practice Power in Circuits practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Van Ausdal's class at SLCC.