1
GATE EE 2015 Set 2
+1
-0.3
In the following circuit, the input voltage $${V_{in}}$$ is $$100\sin \left( {100\pi t} \right).$$ For $$100\pi RC = 50,$$ the average voltage across $$R$$ (in volts) under steady-state is nearest to
A
$$100$$
B
$$31.8$$
C
$$200$$
D
$$63.6$$
2
GATE EE 2014 Set 2
Numerical
+1
-0
The sinusoidal ac source in the figure has an rms value of $${{20} \over {\sqrt 2 }}\,V.$$ Considering all possible values of $${R_L},\,\,$$ the minimum value of $${R_s}$$ in $$\Omega$$ to avoid burnout of the Zener diode is ______.
3
GATE EE 2014 Set 1
Numerical
+1
-0
The figure shows the circuit of a rectifier fed from a 230 V (rms), 50Hz sinusoidal voltage source. If we want to replace the current source with a resistor so that the rms value of the current supplied by the voltage source remains unchanged, the value of the resistance (in ohms) is __________ (Assume diodes to be ideal)
4
GATE EE 2012
+1
-0.3
The $$i$$-v characteristics of the diode in the circuit given below are $$i = \left\{ {\matrix{ {{{v - 0.7} \over {500}}A,} & {v \ge 0.7\,V} \cr {0A,} & {v < 0.7\,V} \cr } } \right.$$\$

The current in the circuit is

A
$$10$$ mA
B
$$9.3$$ mA
C
$$6.67$$ mA
D
$$6.2$$ mA
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