Question
Download Solution PDFWhy we use low internal resistance in series of an ammeter?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFAn ammeter is an electrical device that is used to measure the current.
In an ammeter, a low-value resistance is connected in series with it.
This is done to ensure a low voltage drop on the ammeter.
Values of input resistance
|
Device/Source |
Ideal |
Practical |
Connection |
|
Voltmeter |
Infinite |
High |
Parallel |
|
Ammeter |
Zero |
Low |
Series |
|
Voltage source |
Zero |
Low |
Series |
|
Current source |
Infinite |
High |
Parallel |
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