ECE :: Measurements and Instrumentation
-
Two wattmeter method for 3 phase power measurement can be used only for
-
A coil resonates at 1 MHz with a resonating capacitance of 72 pF. At 500 pF, resonance is obtained with a resonating capacitor of 360 pF. The self capacitance of coil is
-
A peak responding ac voltmeter using a half wave rectifier has been calibrated to read 1 V for 1 V rms sine wave input. If input is 1 V dc the reading will be
-
For measuring inductance with high Q, we should use
-
Assertion (A): The speed of a shaft can be measured by using a dc tacho generator.
Reason (R): A two phase servometer can also be used as a speed transducer.
-
The circuit of figure is used to measure the value Rx. Ammeter resistance Ra = 0.1 Ω voltmeter resistance Rv = 5000 Ω. It Rx1 and Rx2, are the measured values of Rx with switch in position 1 and 2, the mean of Rx1, and Rx2, is
-
A Weston frequency meter is
-
The 10 MHz in the specification of CRO means that
Whatsapp
Facebook
