Power in Circuits Video Lessons

Video Thumbnail

Concept

Problem: A circuit maintains a constant resistance. If the current in the circuit is doubled, what is the effect on the power dissipated by the circuit?Select one:a. The power dissipated remains constant.b. The power dissipated is reduced by a factor of 2.c. The power dissipated is reduced by a factor of 4.d. The power dissipated is quadrupled.e. The power dissipated is doubled.

FREE Expert Solution

Electric power:

P=Vi=i2R=V2R

Using i and R:

P0 = i2R

91% (441 ratings)
View Complete Written Solution
Problem Details

A circuit maintains a constant resistance. If the current in the circuit is doubled, what is the effect on the power dissipated by the circuit?

Select one:

a. The power dissipated remains constant.
b. The power dissipated is reduced by a factor of 2.
c. The power dissipated is reduced by a factor of 4.
d. The power dissipated is quadrupled.
e. The power dissipated is doubled.

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 McKenna's class at UBC.