Electrical and ...

A 3 ½ digit digital multimeter can display

A digital voltmeter has a read out range from 0 to 999 counts. If the full scale reading is 9.99 V, the resolution is

An integrator type DVM (digital voltmeter) contains a 100 kΩ and 1 μF capacitor. If the voltage applied to the integrator input is 1 volt, what voltage will be present at the output of the integrator after 1 second?

The rms reading meter shows value of 60 V when fed from a triangular wave. If the same input is supplied to an average reading voltmeter. Its reading will be _______ (in V)

A 20 V dc voltage is measured by analog and digital voltmeters. The analog instrument is on its 25 V range, and its specified accuracy is ±2%. The digital meter has 3 ½ digit display and an accuracy of ±(0.6% of reading + 1 count). The measurement accuracy in both the cases respectively are:

A dual slope ADC has R = 100 kΩ and C = 0.01 μF. The reference voltage is 10 volts and the fixed integration time is 10 ms. The conversion time for a 6.8-volt input is ________ (in ms)

In a dual slope DVM, an unknown signal voltage is integrated over 150 cycles of the clock. If the signal has a 80 Hz pick up the max clock frequency is _______ (in KHz)

A rectifier type PMMC voltmeter has a sensitivity of 20 kΩ/V. A reading of 4.5 V is obtained when measuring a voltage source with an internal resistance on it’s 5 V scale. When the scale is changed to 10 V full scale, a reading of 6 V is obtained. The value of the voltage and its internal resistance R are

A rectifier type of instrument uses a basic PMMC movement of 100 μA and a resistance 2 kΩ. It employs a half wave rectifier circuit with forward resistance of the diode being 500 Ω. The reverse resistance of the diodes is infinite. The range of the instrument is 0 - 20 V. a.c. sinusoidal. The value of series multiplier is – (in kΩ)

A rectifier type instrument uses a bridge rectifier and has its scale calibrated in terms of rms values of a sine wave. It indicates a voltage of 2.77 V. When measuring a voltage of triangular wave shape. The magnitude of percentage error will be____ (in %)