Answer All Questions: Q1:A: Design a multi-range ammeter of 0.5 and 1 Amp. using a PMMC(galvanometer) of 500 internal resistance and full-scale current of 1 ma. Show the way of connection with the load RL. B: What are the things that must be taken into consideration practically when using the ammeter. Q2: Design series ohmmeter using PMMC of 1002 internal resistance and 0.4ma full-scale deflection current. The required half-scale deflection is equal to 9k2.[use a battery of 9v]. Sketch the internal circuit diagram of the ohmmeter. Sketch also roughly the scale of the designed meter.

Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter12: Batteries And Other Sources Of Electricity
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Answer All Questions:
Q1:A: Design a multi-range ammeter of 0.5 and 1 Amp. using a PMMC(galvanometer) of
500 internal resistance and full-scale current of 1 ma. Show the way of connection with the
load RL.
B: What are the things that must be taken into consideration practically when using the
ammeter.
Q2: Design series ohmmeter using PMMC of 1000 internal resistance and 0.4ma full-scale
deflection current. The required half-scale deflection is equal to 9kQ.[use a battery of 9v].
Sketch the internal circuit diagram of the ohmmeter. Sketch also roughly the scale of the
designed meter.
Transcribed Image Text:Answer All Questions: Q1:A: Design a multi-range ammeter of 0.5 and 1 Amp. using a PMMC(galvanometer) of 500 internal resistance and full-scale current of 1 ma. Show the way of connection with the load RL. B: What are the things that must be taken into consideration practically when using the ammeter. Q2: Design series ohmmeter using PMMC of 1000 internal resistance and 0.4ma full-scale deflection current. The required half-scale deflection is equal to 9kQ.[use a battery of 9v]. Sketch the internal circuit diagram of the ohmmeter. Sketch also roughly the scale of the designed meter.
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