Power in Circuits Video Lessons

Video Thumbnail

Concept

Problem: Light bulbs are typically rated by their power dissipation when operated at a given voltage.Which of the following light bulbs has the largest current through it when operated at the voltage for which it's rated?(a) 3.2 W, 6.0 V(b) 24 W, 12 V(c) 16 W, 18 V(d) 32 W, 24 V

FREE Expert Solution

Power in the circuit is given by:

P=iV, where is current and V is voltage

Therefore, current i = P/V

91% (120 ratings)
View Complete Written Solution
Problem Details

Light bulbs are typically rated by their power dissipation when operated at a given voltage.

Which of the following light bulbs has the largest current through it when operated at the voltage for which it's rated?
(a) 3.2 W, 6.0 V
(b) 24 W, 12 V
(c) 16 W, 18 V
(d) 32 W, 24 V

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.