Bridge Circuits

Question 1

What type of circuit is formed by VA, R1, Point 1, R2, and ground?

Answer 1

A Voltage-Divider

Question 2

The _______ is formed by two voltage divider circuits connected in parallel.

Answer 2

The bridge circuit is formed by two voltage divider circuits connected in parallel.

Question 3

What is the purpose of a bridge circuit?

Answer 3

A bridge circuit compares a known value to an unknown value.

Question 4

To determine the unknown value in a balanced bridge circuit, what formula should you use?

Answer 4

R1/R2 = Rx/Rs

Question 5

Comparing known resistive values to unknown resistive values is accomplished in a _______.

Answer 5

bridge circuit

Question 6

Rx is normally what?

Rs ?

Answer 6

Rx is an unknown value

Rs is a variable resistor