A galvanometer has an internal resistance of 100 ? and deflects full-scale at 2.00 mA. What size resistor should be added to it to convert it to a milliammeter capable of reading up to 4.00 mA?
A) 100 ? in series B) 100 ? in parallel C) 50.0 ? in parallel D) 50.0 ? in series
B
Physics & Space Science
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Two charged particles 1 m apart exert a 1-N force on each other. If the particles are instead 0.5 m apart, the force on each particle will be
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