EE GATE 2009 - Online Test

Q1. The nature of feedback in the op-amp circuit shown is

Answer : Option B
Explaination / Solution:
No Explaination.


Q2. The following circuit has R = 10kΩ, C = 10μF . The input voltage is a sinusoid at 50Hz with an rms value of 10V. Under ideal conditions, the current is from the source is

Answer : Option D
Explaination / Solution:
No Explaination.


Q3. The pressure coil of a dynamometer type wattmeter is
Answer : Option B
Explaination / Solution:

Since all the applied voltage appears across it.

Q4.
Answer : Option A
Explaination / Solution:

When diode is ON, i=1mA. When diode is OFF, i is zero after small reverse recovery time.

Q5. An SCR is considered to be a semi-controlled device because
Answer : Option C
Explaination / Solution:
No Explaination.


Q6. In the figure shown, all elements used are ideal. For time t<0, S1 remained closed and S2 open. At t = 0, S1 is opened and S2 is closed. If the voltage Vc2 across the capacitor C2 at t = 0 is zero, the voltage across the capacitor combination at t=0+ will be 

Answer : Option C
Explaination / Solution:



Q7. Transformer and emitter follower can both be used for impedance matching at the output of an audio amplifier. The basic relationship between the input power Pin and output power Pout in both the cases is
Answer : Option A
Explaination / Solution:
No Explaination.


Q8. The increasing order of speed of data access for the following devices is i. Cache Memory ii. CDROM iii. Dynamic RAM iv. Processor Registers v. Magnetic Tape
Answer : Option B
Explaination / Solution:
No Explaination.


Q9. The complete set of only those Logic Gates designated as Universal Gates is
Answer : Option C
Explaination / Solution:
No Explaination.


Q10. In an 8085 microprocessor, the contents of the Accumulator, after the following instructions are executed will become XRA A MVI B, F0H SUB B
Answer : Option D
Explaination / Solution: