GATE EE 2015 Question Paper (07-Feb-2015) (Shift 1)

A (0-50)A moving coil ammeter has a voltage drop of 0.1V across its terminals at full scale deflection. The external shunt resistance (in milliohms) needed to extend its range to (0 - 500 A) is –

Of the four characteristic given below, which are the major requirements for an instrumentation amplifier?

P: High common mode rejection ratio

Q: High input impedance

R: High linearity

S: High output impedance

In the following chopper, the duty ratio of switch S is 0.4. If the inductor and capacitor are sufficiently large to ensure continuous inductor current and ripple free capacitor voltage, the charging current (in Ampere) of the $5V$ battery, under steady-state, is____. (the value of resistance is 3 ohms)

A moving average function is given by $y\left(t\right)=\frac{1}{T}\underset{t-T}{\overset{t}{\int }}u\left(\tau \right)d\tau$. If the input u is a sinusoidal signal of frequency $\frac{1}{2T}Hz$, then in steady state, the output will lag u (in degree) by

The impulse response $g\left(t\right)$ of a system, G is as shown in figure (a), What is the maximum value attained by the impulse response of two cascaded blocks of G as shown in figure (b)?