In a full wave rectifier ac voltmeter the meter movement has an internal resistance of 250 Ω and require a 1mA for full deflection .The diodes each has a forward resistance of 50 Ω and infinite reverse resistance. Calculate (a) The series resistance required for full scale deflection when 25 V rms is applied to meter terminals (b) the ohms per volt rating of this ac voltmeter.
In a full wave rectifier ac voltmeter the meter movement has an internal resistance of 250 Ω and require a 1mA for full deflection .The diodes each has a forward resistance of 50 Ω and infinite reverse resistance. Calculate (a) The series resistance required for full scale deflection when 25 V rms is applied to meter terminals (b) the ohms per volt rating of this ac voltmeter.
Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
10th Edition
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Russell E. Smith
Chapter12: Electronic Control Devices
Section: Chapter Questions
Problem 3RQ: Diodes and rectifiers allow current to _________.
flow in one direction only
flow in both...
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In a full wave rectifier ac voltmeter the meter movement has an internal resistance of 250 Ω and
require a 1mA for full deflection .The diodes each has a forward resistance of 50 Ω and infinite reverse
resistance. Calculate (a) The series resistance required for full scale deflection when 25 V rms is applied
to meter terminals (b) the ohms per volt rating of this ac voltmeter.
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