A Galvanometer Has an Internal Resistance Of $100 \Omega$ And Deflects Full-Scale At

question 123

Multiple Choice

A galvanometer has an internal resistance of $100 \Omega$ and deflects full-scale at $2.00 \mathrm {~mA}$ . What size resistor should be added to it to convert it to a milliammeter capable of reading up to $4.00 \mathrm {~mA}$ ?

• A) \(50.0 \Omega\) in parallel
• B) \(100 \Omega\) in parallel
• C) \(50.0 \Omega\) in series
• D) \(100 \Omega\) in series

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Definitions:

Natural Logarithm

The logarithm to the base e, where e is an irrational constant approximately equal to 2.718.

Stdlib.h

A header file in the C standard library that contains declarations for standard utility functions for performing general functions, such as dynamic memory allocation, random numbers, and other utilities.

Rand()

A function in many programming languages used to generate a pseudo-random number within a specified range.

Time()

A function in many programming languages that returns the current time, often represented as the number of seconds since a predefined epoch.