To avoid wastage of power during calibration in dynamometer type wattm – McqOptions

MCQOPTIONS

1.	To avoid wastage of power during calibration in dynamometer type wattmeter
A.	Phantom loading is used
B.	Brake magnet is used
C.	Spring is used
D.	Capacitance is used
Answer» B. Brake magnet is used

Discussion

No Comment Found

Related MCQs

While measuring resistance by the voltmeter-ammeter method, the maximum possible percentage error in the voltmeter and ammeter are ± 1.8% and ± 1.2% respectively. Then the maximum possible percentage error in the value of resistance will be
With the increase in the intensity of light, the resistance of a photovoltaic cell
X-Y recorders is the type of
Which of the following statements are correct I. Repeatability means the closeness of output readings when the same input is applied repetitively over a short period of time, with the same measurement conditions and same instruments. II. Reproducibility means the closeness of output readings for the same input when there are changes in the method of measurement and conditions of measurement.
Which among the following is not the type of digital voltmeters?
When visual indication of pressure level is required then the instrument generally used is
When a voltmeter-ammeter method is applied for the measurement of resistance, the voltmeter reads a value of 8.28 V and the ammeter reading is 4.14 mA. Then the value of the resistance will be
When a 100 V moving iron voltmeter is of accuracy class 1-0 is used in a circuit, it reads 50 V. Then the maximum possible percentage error in the reading is
What will happen if the current coil and potential coil of dynamometer type wattmeter is interchanged?
Vibration galvanometer are generally used