Question 1

What is a bridge circuit?

Accepted Answer

An electrical circuit arranged in the form of a bridge or ring structure.

Answer

A circuit designed for alternating current only

Answer

A circuit that requires no components

Answer

A linear circuit with a single resistor

Question 2

What are the two categories of bridge circuits based on the voltage signal?

Accepted Answer

DC Bridges and AC Bridges

Answer

Series and Parallel Circuits

Answer

Only AC Bridges

Answer

Only DC Bridges

Question 3

What is the primary use of a DC bridge?

Accepted Answer

To measure the value of unknown resistance.

Answer

To measure frequency

Answer

To measure capacitance

Answer

To measure voltage

Question 4

What does the galvanometer indicate in a DC bridge?

Accepted Answer

Deflection when the bridge is unbalanced.

Answer

Indicates current flow

Answer

Indicates the voltage level

Answer

Shows the resistance value

Question 5

When is a DC bridge considered balanced?

Accepted Answer

When the galvanometer shows null (zero) deflection.

Answer

When the current is zero

Answer

When all resistors are equal

Answer

When the voltage is at maximum

Question 6

What is a distinguishing feature of an AC bridge compared to a DC bridge?

Accepted Answer

It uses AC voltage signals.

Answer

It cannot measure frequency

Answer

It only uses resistors

Answer

It has fewer components

Question 7

What can be measured using an AC bridge?

Accepted Answer

Unknown inductance, capacitance, and frequency.

Answer

Only resistance

Answer

Current flow

Answer

Voltage levels

Question 8

What does the detector in an AC bridge show?

Accepted Answer

Deflection when the bridge is unbalanced.

Answer

Shows the AC voltage

Answer

Shows the total current

Answer

Indicates the resistance value

Question 9

What components might be found in the arms of an AC bridge?

Accepted Answer

Resistors, inductors, and capacitors.

Answer

Only capacitors

Answer

Purely resistive components

Answer

Only inductors

Question 10

How is an AC bridge typically excited to operate?

Accepted Answer

By placing an AC voltage source in one diagonal.

Answer

By placing a DC voltage source

Answer

By using a battery

Answer

By connecting it to the ground

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