ECE6203 Electronics 2 Electronic Circuit Analysis and Design

Which tool is primarily used to measure voltage, current, and resistance in DC troubleshooting?

• Oscilloscope

• Multimeter

• Ohmmeter

• Voltmeter

What does an open resistor measure?

• Zero resistance

• Infinite resistance

• Normal resistance

• Negative resistance

When troubleshooting a series circuit, what happens if there is an open circuit?

• Current flows normally

• Current is zero in all parts of the circuit

• Voltage increases across all components

• Only one component is affected

In a series circuit, what effect does a short have on current flow?

• Current decreases

• Current remains the same

• Current increases

• Current stops completely

What happens to the voltage across non-shorted elements in a series circuit when part of it is shorted?

• Voltage drops across all elements

• Voltage remains constant across all elements

• Voltage drops across the shorted component to 0V

• Voltage increases across all elements

In parallel circuits, what happens if one branch has an open circuit?

• All branches are affected

• No current flows through that branch only

• The entire circuit stops working

• Current increases in all branches

What is the effect of a short circuit in one branch of a parallel circuit?

• Total current decreases

• Other branches are unaffected

• Total current increases significantly

• Voltage across all branches drops

How can you check for continuity in wires and connectors?

• By visual inspection only

• Using an ohmmeter

• Using a multimeter set to voltage mode

• By measuring current flow

What should be done before using an ohmmeter to measure resistance?

• Ensure power is on in the circuit

• Ensure power is off in the circuit

• Connect the ohmmeter to AC power

• Check for shorts in the circuit

In troubleshooting, what does verifying that power is available entail?

• Checking battery levels only

• Ensuring there are no shorts

• Confirming voltage at the source

• Inspecting physical connections