Measuring Voltage and Current MCQs : Here you will find MCQ Questions related to "Measuring Voltage & Current" in Electric Circuits. These Measuring Voltage & Current MCQ Questions Will help you to improve your Electric Circuits knowledge and will prepare you for various Examinations like Competitive Exams, Placements, Interviews and other Entrance Exmaniations.
Question 1
In series, _________ is same.
A. current
B. voltage
C. Both A and B
D. None of the above
Question 2
____________ helps in current measurement by placing it in ____________ with the circuit element.
A. Voltameter, Parallel
B. Ammeter, series
C. Voltmeter, series
D. Ammeter, parallel
Question 3
An ideal voltmeter has _________ equivalent resistance.
A. 0
B. 1
C. -1
D. Infinite
Question 4
An ideal ammeter has ________ equivalent resistance.
A. 0
B. 1
C. -1
D. Infinite
Question 5
__________ are used to measure current (or) voltage signals at discrete points in time known as sampling times.
A. Analog meters
B. Sonometers
C. Digital meters
D. Tachometers
Question 6
Digital meters are preferable than analog meters.
A. TRUE
B. FALSE
C. Can be true or false
D. Can not say
Question 7
An ideal voltmeter functions as __________ circuit
A. A short
B. An open
C. A power
D. An infinite
Question 8
An ideal ammeter functions as __________ circuit
A. A short
B. An open
C. A power
D. An infinite
Question 9
A 100mv, 5mA d’Arsonval movement is to be used in an ammeter whose full-scale reading is 1A. Calculate RA.
A. 0.7 ohms
B. 0.4 ohms
C. 0.1 ohms
D. 0.3 ohms
Question 10
A 122mv, 12mA d’Arsonval movement is to be used in voltmeter whose full scale reading is 120v. The resistance inserted by 120v _____________
A. 1200 ohms
B. 12000 ohms
C. 1000 ohms
D. 10000 ohms