DC Chapter 7

Imagine a water system with a holding tank, pump, and return lines. What would happen to the resistance to flow if a return path is added to the system?

IT LESSENS

In a parallel circuit, the total resistance is _____ value resistor.

LESS THAN THE LOWEST

A three branch parallel circuit has resistors of 27 W, 56 W, and 15 W. What is the total resistance?

8.23W

A method for finding total resistance of parallel resistors is _____.

ALL THE ABOVE

A parallel circuit composed of a 150 W and a 270 W resistor has a voltage of 120 V. What is the current in the 150 W resistor?

0.8A

A two-branch parallel circuit has a 30 W and a 15 W resistor. What is the total resistance?

10W

A three-branch parallel circuit has a total resistance of 385.83 W. Two of the resistors are 680 W and 1500 W. What is the value of the third resistor?

2200W

A parallel circuit is composed of two 60 W resistors. What is the total resistance?

30W

A parallel circuit composed of a 10 W and a 22 W resistor. It has a voltage of 60 V. What is the current in the 10 W resistor?

6A

The term "load" refers to the amount of _____ in a circuit branch.

CURRENT

In a parallel circuit, the current through each branch is inversely proportional to the resistance of the branch. Because of this, parallel circuits are sometimes called _____.

CURRENT DIVIDERS

In a parallel circuit, the total current flow is equal to the _____ of the currents through all the branches.

SUM