Electrical Measuring Instruments | Practice MCQs Physics for Mdcat | mosaicbro.com

Electrical Measuring Instruments | Practice MCQs Physics for Mdcat

7 of 79 questions (Page 8 of 12)

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50 Ammeter is used to measure:
Correct Answer: A
Explanation: Ammeters are designed to measure larger currents, typically in amperes.
51 A voltmeter measures the voltage of a source of P.D across a circuit, when is connected:
Correct Answer: B
Explanation: A voltmeter must be connected in parallel to measure the potential difference across a component.
52 A galvanometer can be converted into a voltmeter by connecting a suitable:
Correct Answer: C
Explanation: A high resistance in series extends the range of the galvanometer to measure voltage.
53 Electrical measuring instruments are devices, which convert:
Correct Answer: C
Explanation: These instruments convert electrical energy into mechanical motion (e.g., needle deflection).
54 Galvanometer has:
Correct Answer: B
Explanation: The coil of a galvanometer has a fixed resistance.
55 An ammeter is used to measure:
Correct Answer: A
Explanation: Ammeters are specifically designed to measure electric current.
56 The shunt resistance is used with galvanometer to limit the current as:
Correct Answer: B
Explanation: A shunt resistance in parallel diverts excess current, protecting the galvanometer.
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