1
GATE EE 2004
+2
-0.6
Assuming that the diodes are ideal in figure the current in the diode $${D_1}$$ is
A
$$8$$ $$mA$$
B
$$5$$ $$mA$$
C
$$0$$ $$mA$$
D
$$-3$$ $$mA$$
2
GATE EE 2003
+2
-0.6
A voltage signal $$\,10\,\,\sin \,\omega t\,\,$$ is applied to the circuit with ideal diodes, as shown in figure. The maximum and minimum values of the output waveform of the circuit are respectively
A
$$+10V$$ and $$-10V$$
B
$$+4V$$ and $$-4V$$
C
$$+7V$$ and $$-4V$$
D
$$+4V$$ and $$-7V$$
3
GATE EE 2002
+2
-0.6
A diode whose terminal characteristics are related as $${i_D} = {{\rm I}_S}\,{e^{{V \over {{V_T}}}}},\,$$ where $${{\rm I}_S}$$ is the reverse saturation current and $${V_T}$$ is thermal voltage ($$25$$ $$mV$$) is biased at $${i_D} = 2\,mA.$$ Its dynamic resistance is _______.
A
$$25\,\Omega$$
B
$$12.5\,\Omega$$
C
$$50\,\Omega$$
D
$$100\,\Omega$$
4
GATE EE 2002
+2
-0.6
In the single phase diode bridge rectifier shown in the figure, the load resistor is $$R = 50\,\Omega .$$ The source voltage is $$V=200$$ $$sin$$ $$\omega t,$$ where $$\omega = 2\pi \, \times \,50\,rad/sec.$$ The power dissipated in the load resistor $$R$$ is
A
$${{3200\,W} \over \pi }$$
B
$${{400\,W} \over \pi }$$
C
$${400\,W}$$
D
$${800\,W}$$
EXAM MAP
Medical
NEET