A lamp filament is to have its resistance measured by the voltmeter/ammeter method. The test voltage is 120 V while the voltmeter and ammeter resistances are 1500 2 and 0.08 2 respectively. If when connected long-shunt the ammeter reads 0.125 A, determine the percentage error of the apparent resistance measurement when the circuit is connected: (a) long-shunt (b) short-shunt.
A lamp filament is to have its resistance measured by the voltmeter/ammeter method. The test voltage is 120 V while the voltmeter and ammeter resistances are 1500 2 and 0.08 2 respectively. If when connected long-shunt the ammeter reads 0.125 A, determine the percentage error of the apparent resistance measurement when the circuit is connected: (a) long-shunt (b) short-shunt.
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter7: Parallel Circuits
Section: Chapter Questions
Problem 3PP: Using the rules for parallel circuits and Ohmslaw, solve for the missing values....
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