Rajkamal Sir (Engineers Platform) 📚📚

3. An ammeter is obtained by shunting a 30 Ω galvanometer with 30 Ω resistance. What additional shunt should be connected across it to double the range? [SSC JE EE 2010]

2. Moving iron instruments are scaled at…………. [SSC JE EE 2022]

1. Which of the following is a moving iron instrument's benefit? [SSC JE EE 2022]

5. The damping is D Arsonval galvanometer is obtained by [SSC JE EE 2010]

4. If 8 represents deflection of pointer, the controlling torque in a spring controlled indicating instrument is proportional to [SSC JE EE 2010]

3. The range of a DC milliammeter can be extended by using a ,………… [SSC JE EE 2010]

2. Two meters X and Y required 40mA and 50mA respectively for fully scale deflection. Then

1. Which one of the following types of instruments does suffer from error due to magnetic hysteresis?

5. Which of the following is TRUE in case of current transformers?