Question: A series type ohmmeter is designed with a d’Arsonval movement having full scale current of 0.5 mA and an internal resistance. It uses a battery of 3 V and has a half scale resistance of 3000Ω. The battery voltage goes down to 2.7 V. what is the value of shunt resistance required so that full scale current is obtained if the meter terminals are short circuited?
Answer:
MCQ: A series type ohmmeter is designed with a d’Arsonval movement having full scale current of 0.5 mA and an internal resistance. It uses a battery of 3 V and has a half scale resistance of 3000Ω. The battery voltage goes down to 2.7 V. what is the value of shunt resistance required so that full scale current is obtained if the meter terminals are short circuited?
Correct Answer:
A. 62.5 Ω
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