Although an ideal ammeter has an internal resistance of zero, this theoretical ideal is usually not met
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Although an ideal ammeter has an internal resistance of zero, this theoretical ideal is usually not met in practice. The ammeter in Figure P19.77 has an internal resistance of 0.010 V and is used to measure the current in a circuit containing a resistor with R = 150Ω as shown. How much does this nonideal ammeter affect the circuit? That is, what is the fractional change in the current when the ammeter is attached?
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Related Book For
College Physics Reasoning and Relationships
ISBN: 978-0840058195
2nd edition
Authors: Nicholas Giordano
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