Question 1

The diode the diode permits current to flow through it in only one direction.

Accepted Answer

A diode is a semiconductor device that allows current to flow through it in one direction only, with minimal resistance, while blocking current in the opposite direction.

Question 2

Electronic diagrams are drawn to assume that current flows from negative to positive.

Accepted Answer

Electronic diagrams are typically drawn assuming conventional current flow, which is from positive to negative.

Question 3

Most diodes can be tested with a(n) ____.&#10;A) ohmmeter&#10;B) voltmeter&#10;C) ammeter&#10;D) dynamometer

Accepted Answer

An ohmmeter can be used to test most diodes by measuring their resistance in both the forward and reverse bias directions. This helps determine if the diode is functioning properly by allowing current to flow in only one direction.

Question 4

Common junction diodes are often referred to as ____ diodes.&#10;A) dynamic&#10;B) rectifier&#10;C) nonlinear&#10;D) polar

Accepted Answer

Rectifier diodes are commonly used in electronics to convert alternating current (AC) to direct current (DC), hence the term "rectifier" is often used to refer to common junction diodes.

Question 5

Basically, ____ are electrical check valves.&#10;A) capacitors&#10;B) semiconductors&#10;C) diodes&#10;D) switches

Accepted Answer

Diodes function as electrical check valves by allowing current to flow in one direction while blocking it in the opposite direction.

Question 6

The forward voltage of rectifier diodes is low enough that a common ohmmeter can supply enough&#160; voltage to cause conduction.

Accepted Answer

Ohmmeters are designed to measure resistance by applying a small voltage to the component being tested. This voltage is typically enough to forward bias rectifier diodes, causing them to conduct and allowing the ohmmeter to measure their forward voltage drop, which is usually low (around 0.6 to 0.7 volts for silicon diodes).

Question 7

Many people prefer to use the ____ current flow theory when determining the current path through an&#160; electronic circuit.&#10;A) alternative&#10;B) modern&#10;C) circular&#10;D) conventional

Accepted Answer

The correct term is "conventional current flow theory," which posits that current flows from the positive terminal to the negative terminal of a power source.

Question 8

In order for a diode to conduct, the anode must be connected to the more negative voltage and cathode&#160; to the more positive.

Accepted Answer

For a diode to conduct, the anode must be connected to the more positive voltage and the cathode to the more negative voltage, allowing current to flow through the diode.

Question 9

Junction diodes are often referred to as PN junctions because they are made by joining a piece of P- type and N-type semiconductor material together.

Accepted Answer

Junction diodes are indeed referred to as PN junctions because they consist of a piece of P-type semiconductor material joined together with a piece of N-type semiconductor material, forming a junction that allows current to flow in one direction but not the other.

Question 10

The forward voltage drop of most rectifier diodes is approximately ____.&#10;A) 1 volt&#10;B) 2 volts&#10;C) 3 volts&#10;D) 4 volts

Accepted Answer

The forward voltage drop of most rectifier diodes is approximately 1 volt, which is a typical value for silicon-based diodes when they are in the conducting state.

Deck 4: Junction Diodes