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

Electrical Measuring Instruments | Practice MCQs Physics for Mdcat

7 of 79 questions (Page 11 of 12)

Filter by Category

71 Potentiometer can be used as:
Correct Answer: D
Explanation: A potentiometer functions as a potential divider, providing variable voltage outputs.
72 A balanced Wheatstone bridge is used to determine:
Correct Answer: A
Explanation: The primary use of a balanced Wheatstone bridge is to find an unknown resistance.
73 The construction of a post office box is based on the principle of:
Correct Answer: D
Explanation: The post office box is built on the Wheatstone bridge principle.
74 A post office box is used to measure:
Correct Answer: D
Explanation: It is specifically designed for measuring unknown resistances accurately.
75 The construction of a slide wire bridge is based on the principle of a:
Correct Answer: D
Explanation: The slide wire bridge is a variant of the Wheatstone bridge.
76 A potentiometer is used to measure:
Correct Answer: B
Explanation: Potentiometers are primarily used for precise voltage measurements.
77 A potentiometer is a most accurate potential measuring device because:
Correct Answer: D
Explanation: The potentiometer's accuracy stems from its null measurement method, which draws no current from the circuit being measured.
MCQs Bank by mosaicbro.com