What is an advantage of a digital multimeter as compared to an analog multimeter?
The correct answer is C: Higher precision. An advantage of a digital multimeter as compared to an analog multimeter is higher precision. Digital meters can display more digits and have better precision than analog meters. For amateur radio operators, this provides more accurate measurements. Understanding this helps when selecting test equipment.
Exam Tip
Digital multimeter advantage = higher precision. Think 'D'igital 'M'ultimeter = 'D'isplays 'M'ore digits (higher precision). Digital meters can display more digits and have better precision than analog meters. Not computer circuits, not overload, not speed - just precision.
Memory Aid
"Digital multimeter advantage = higher precision. Think 'D'igital 'M'ultimeter = 'D'isplays 'M'ore digits. Digital meters can display more digits and have better precision than analog meters. Key advantage for accurate measurements."
Real-World Application
You measure a voltage. A digital multimeter displays 12.345 volts (high precision), while an analog meter might show 12.3 volts (lower precision). Digital meters can show more decimal places, providing higher precision. This is a key advantage of digital meters.
Key Concepts
Why Other Options Are Wrong
Option A: Incorrect. Digital meters aren't necessarily better for measuring computer circuits - both can measure DC voltages. Computer circuit measurement isn't a specific advantage.
Option B: Incorrect. Digital meters aren't less prone to overload - both can be damaged by excessive voltage/current. Overload protection depends on design, not meter type.
Option D: Incorrect. Digital meters aren't necessarily faster - response time depends on design. Speed isn't a consistent advantage.
题目解析
The correct answer is C: Higher precision. An advantage of a digital multimeter as compared to an analog multimeter is higher precision. Digital meters can display more digits and have better precision than analog meters. For amateur radio operators, this provides more accurate measurements. Understanding this helps when selecting test equipment.
考试技巧
Digital multimeter advantage = higher precision. Think 'D'igital 'M'ultimeter = 'D'isplays 'M'ore digits (higher precision). Digital meters can display more digits and have better precision than analog meters. Not computer circuits, not overload, not speed - just precision.
记忆口诀
Digital multimeter advantage = higher precision. Think 'D'igital 'M'ultimeter = 'D'isplays 'M'ore digits. Digital meters can display more digits and have better precision than analog meters. Key advantage for accurate measurements.
实际应用示例
You measure a voltage. A digital multimeter displays 12.345 volts (high precision), while an analog meter might show 12.3 volts (lower precision). Digital meters can show more decimal places, providing higher precision. This is a key advantage of digital meters.
错误选项分析
Option A: Incorrect. Digital meters aren't necessarily better for measuring computer circuits - both can measure DC voltages. Computer circuit measurement isn't a specific advantage. Option B: Incorrect. Digital meters aren't less prone to overload - both can be damaged by excessive voltage/current. Overload protection depends on design, not meter type. Option D: Incorrect. Digital meters aren't necessarily faster - response time depends on design. Speed isn't a consistent advantage.
知识点
Digital multimeter, Analog multimeter, Higher precision, Measurement accuracy
Verified Content
Question from official FCC General Class question pool. Explanation reviewed by licensed amateur radio operators.