ISRO Scientist or Engineer Electronics 2011

Two coupled coils have self inductances $$L1 = 10mH$$ and $$L2 = 20mH$$. The co-efficient of coupling (K) being 0.75 in the air. Voltage in the second coil when the current in circuit is given by $$I = 2 \sin (314 t) A$$ is..........

In aradarsystem,if the peak transmitted poweris increased by a factor of 16 and the antenna diameteris increased by a factor of 2, then the maximum range will increase by a factor of

The transconductance g_ of an FET in the saturation region equals

The transistor amplifier with 85% of efficiency is likely to be

A run-time stack cannot be used in a round-robin scheduling system because of the _.................. nature of scheduling.

$$(3 + i)/(5 + 5i)$$ is same as

The modulation index of an amplitude modulated waveis changed from 0 to 1. the transmitted power is

In a communication system, each message(1 or 0) is transmitted three times in order to reduce the probability of error. The detection is based on the majority rule at the receiver. If Pc is the probability of bit error, the probability of error for this communication channel will be

Fora satellite transponder with a receiver antenna gain of 12 dB , an LNA gain of 10 dB, and equivalent noise temperature of $$26  dBK^{-1}$$, the $$\frac{G}{Te}$$ is

............currentis the leakage current that flows through a photo diode with no input used in as light detectors.