GATE EE 2010 Question Paper (14-Feb-2010) (Shift 1)

The TTL circuit shown in the figure is fed with the waveform X (also shown). All gates have equal propagation delay of 10 ns. The output Y of the circuit is

Divergence of the three-dimensional radial vector field $\vec{r}$ is

A separately excited dc motor runs at 1500rpm under no load with 200V applied to the armature. The field voltage is maintained at its rated value. The speed of the motor, when it delivers a torque of 5Nm is 1400 rpm. The rotational and armature reaction are neglectedThe armature resistance of the motor is

A separately excited dc motor runs at 1500 rpm under no load with 200 V applied to the armature. The field voltage is maintained at its rated value. The speed of the motor, when it delivers a torque of 5 Nm is 1400 rpm as shown in the figure. The rotational and armature reaction are neglected. For the motor to deliver a torque of 2.5 Nm at 1400 rpm the armature voltage to be applied is

Given f(t) and g(t) as shown below





g(t) can be expressed as