GATE EE 2014 Question Paper (02-Mar-2014) (Shift 1)

A JK flip flop can be implemented by T flip-flops. Identify the correct Implementation

In an 8085 microprocessor, the following program is executed

Address location – instruction

2000H XRA A

2001H MVI B, 04H

2003H MVI A, 03H

2005H RAR

2006H DCR B

2007H JNZ 2005

200AH HLT

At the end of program, register A contains

A fully controlled converter bridge feedsahighly inductive load with ripple free load current. The input supply Vs to the bridge is a sinusoidal source. The triggering angle of the bridge converter is α = 30°. The input power factor of the bridge is

A 1-phase SCR based ac regulator is feeding power to a load consisting of 5 Ω resistance and 16mH inductance. The input supply is 230 V, 50 Hz. The maximum firing angle at which the voltage across the device becomes zero all throughout and the rms value of current through SCR, under the operating condition are

The SCR in the circuit shown has a latching current of 40mA. A gate pulse of 50 μs is applied to the SCR. The maximum value of R in Ω to ensure successful firing of the SCR is