GATE IN 2018 Question Paper (04-Feb-2018) (Shift 2)

A 300 V, 5 A, 0.2 pf low power factor wattmeter is used to measure the power consumed by a load. The wattmeter scale has 150 divisions and the pointer is on the 100th division. The power consumed by the load (in Watts) is ________.

As shown in the figure, temperature θ is measured using a K type thermocouple. It has a sensitivity of 40 μ V° C. The Gain (G) of the ideal instrumentation amplifier is 25. If the output V₀ is 96 mV, then the value of θ (in °C) is ________.

A piezoelectric pressure sensor has a bandpass characteristic with cut-off frequency of 0.1 Hz and 1 MHz, and a sensitivity of 100 mV/kPa. The sensor is subjected to a static constant pressure of 100 kPa. Its steady-state output will be

An amplitude modulated signal is shown in the figure. The Modulation index is (up to one decimal place) _______.

An optical pulse containing 6 × 10⁶ photons is incident on a photodiode and 4.5 × 10⁶ electron-hole pairs are created. The maximum possible quantum efficiency (in %) of the photodiode______.