Semiconductor Electronics Material Devices and Simple Circuits
150878
In adjoining figure, the input (a.c.) is across the terminals \(A\) and \(C\) and the output is across \(B\) and \(D\). Then output is
1 zero
2 the same as input
3 half wave rectified
4 full wave rectified
Explanation:
D In positive half cycle, \(D_1 \& D_3\) are forward biased \(D_2 \& D_4\) are reverse biased In negative half cycle, \(D_1 \& D_3\) are reverse bias \(D_2 \& D_4\) are forward bias And the direction will be same so output will like this, So it is a full wave rectifier.
AMU-2017
Semiconductor Electronics Material Devices and Simple Circuits
150880
The output voltage \((V)\) versus time \((t)\) curve of a rectifier is shown in the figure. The rms value of the output voltage is
1 \(\frac{V_0}{2}\)
2 \(\frac{\mathrm{V}_0}{\sqrt{2}}\)
3 \(\frac{\mathrm{V}_0}{2 \sqrt{2}}\)
4 \(\frac{2 \mathrm{~V}_0}{\pi}\)
Explanation:
B From given figure is a output wave form of full wave Rectifier. And rms value of output voltage for full wave Rectifier is \(\mathrm{V}_{\mathrm{rms}} =\frac{\mathrm{V}_{\mathrm{m}}}{\sqrt{2}}\) \(\therefore \quad \mathrm{V}_{\mathrm{rms}} =\frac{\mathrm{V}_{\mathrm{o}}}{\sqrt{2}} \quad\left(\therefore \mathrm{V}_{\mathrm{m}}=\mathrm{V}_{\mathrm{o}}\right)\)
AMU-2006
Semiconductor Electronics Material Devices and Simple Circuits
150884
A common emitter amplifier has a voltage gain of \(50 \mathrm{~V}\), an input impedance of \(100 \Omega\) and an output impedance of \(200 \Omega\). The power gain the amplifier is
1 500
2 1000
3 1250
4 50
Explanation:
C Given, Voltage gain \(=50 \mathrm{~V}\) Input impedance \(\left(\mathrm{R}_{\mathrm{in}}\right)=100 \Omega\) Output impedance \(\left(\mathrm{R}_{\text {out }}\right)=100 \Omega\) Voltage gain \(=\beta\left(\frac{\mathrm{R}_{\text {out }}}{\mathrm{R}_{\text {in }}}\right)\) \(50=\beta\left(\frac{200}{100}\right)\) \(\beta=25\) Power gain \(=\beta \times(\) voltage gain \()\) \(=25 \times 50\)Power gain \(=1250\)
AIPMT- 2010
Semiconductor Electronics Material Devices and Simple Circuits
150887
In figure the input is across the terminals \(A\) and \(C\) and the output is across \(B\) and \(D\). Then the output is
1 Zero
2 Same as the input
3 Half wave rectified
4 Full wave rectified
Explanation:
D This figure is shown that its based on bridge rectifier. This is the most widely used full-wave rectifier. It used to four diode \(\mathrm{D}_1, \mathrm{D}_2, \mathrm{D}_3, \mathrm{D}_4\), connected in the four arms of a bridge.
Semiconductor Electronics Material Devices and Simple Circuits
150878
In adjoining figure, the input (a.c.) is across the terminals \(A\) and \(C\) and the output is across \(B\) and \(D\). Then output is
1 zero
2 the same as input
3 half wave rectified
4 full wave rectified
Explanation:
D In positive half cycle, \(D_1 \& D_3\) are forward biased \(D_2 \& D_4\) are reverse biased In negative half cycle, \(D_1 \& D_3\) are reverse bias \(D_2 \& D_4\) are forward bias And the direction will be same so output will like this, So it is a full wave rectifier.
AMU-2017
Semiconductor Electronics Material Devices and Simple Circuits
150880
The output voltage \((V)\) versus time \((t)\) curve of a rectifier is shown in the figure. The rms value of the output voltage is
1 \(\frac{V_0}{2}\)
2 \(\frac{\mathrm{V}_0}{\sqrt{2}}\)
3 \(\frac{\mathrm{V}_0}{2 \sqrt{2}}\)
4 \(\frac{2 \mathrm{~V}_0}{\pi}\)
Explanation:
B From given figure is a output wave form of full wave Rectifier. And rms value of output voltage for full wave Rectifier is \(\mathrm{V}_{\mathrm{rms}} =\frac{\mathrm{V}_{\mathrm{m}}}{\sqrt{2}}\) \(\therefore \quad \mathrm{V}_{\mathrm{rms}} =\frac{\mathrm{V}_{\mathrm{o}}}{\sqrt{2}} \quad\left(\therefore \mathrm{V}_{\mathrm{m}}=\mathrm{V}_{\mathrm{o}}\right)\)
AMU-2006
Semiconductor Electronics Material Devices and Simple Circuits
150884
A common emitter amplifier has a voltage gain of \(50 \mathrm{~V}\), an input impedance of \(100 \Omega\) and an output impedance of \(200 \Omega\). The power gain the amplifier is
1 500
2 1000
3 1250
4 50
Explanation:
C Given, Voltage gain \(=50 \mathrm{~V}\) Input impedance \(\left(\mathrm{R}_{\mathrm{in}}\right)=100 \Omega\) Output impedance \(\left(\mathrm{R}_{\text {out }}\right)=100 \Omega\) Voltage gain \(=\beta\left(\frac{\mathrm{R}_{\text {out }}}{\mathrm{R}_{\text {in }}}\right)\) \(50=\beta\left(\frac{200}{100}\right)\) \(\beta=25\) Power gain \(=\beta \times(\) voltage gain \()\) \(=25 \times 50\)Power gain \(=1250\)
AIPMT- 2010
Semiconductor Electronics Material Devices and Simple Circuits
150887
In figure the input is across the terminals \(A\) and \(C\) and the output is across \(B\) and \(D\). Then the output is
1 Zero
2 Same as the input
3 Half wave rectified
4 Full wave rectified
Explanation:
D This figure is shown that its based on bridge rectifier. This is the most widely used full-wave rectifier. It used to four diode \(\mathrm{D}_1, \mathrm{D}_2, \mathrm{D}_3, \mathrm{D}_4\), connected in the four arms of a bridge.
Semiconductor Electronics Material Devices and Simple Circuits
150878
In adjoining figure, the input (a.c.) is across the terminals \(A\) and \(C\) and the output is across \(B\) and \(D\). Then output is
1 zero
2 the same as input
3 half wave rectified
4 full wave rectified
Explanation:
D In positive half cycle, \(D_1 \& D_3\) are forward biased \(D_2 \& D_4\) are reverse biased In negative half cycle, \(D_1 \& D_3\) are reverse bias \(D_2 \& D_4\) are forward bias And the direction will be same so output will like this, So it is a full wave rectifier.
AMU-2017
Semiconductor Electronics Material Devices and Simple Circuits
150880
The output voltage \((V)\) versus time \((t)\) curve of a rectifier is shown in the figure. The rms value of the output voltage is
1 \(\frac{V_0}{2}\)
2 \(\frac{\mathrm{V}_0}{\sqrt{2}}\)
3 \(\frac{\mathrm{V}_0}{2 \sqrt{2}}\)
4 \(\frac{2 \mathrm{~V}_0}{\pi}\)
Explanation:
B From given figure is a output wave form of full wave Rectifier. And rms value of output voltage for full wave Rectifier is \(\mathrm{V}_{\mathrm{rms}} =\frac{\mathrm{V}_{\mathrm{m}}}{\sqrt{2}}\) \(\therefore \quad \mathrm{V}_{\mathrm{rms}} =\frac{\mathrm{V}_{\mathrm{o}}}{\sqrt{2}} \quad\left(\therefore \mathrm{V}_{\mathrm{m}}=\mathrm{V}_{\mathrm{o}}\right)\)
AMU-2006
Semiconductor Electronics Material Devices and Simple Circuits
150884
A common emitter amplifier has a voltage gain of \(50 \mathrm{~V}\), an input impedance of \(100 \Omega\) and an output impedance of \(200 \Omega\). The power gain the amplifier is
1 500
2 1000
3 1250
4 50
Explanation:
C Given, Voltage gain \(=50 \mathrm{~V}\) Input impedance \(\left(\mathrm{R}_{\mathrm{in}}\right)=100 \Omega\) Output impedance \(\left(\mathrm{R}_{\text {out }}\right)=100 \Omega\) Voltage gain \(=\beta\left(\frac{\mathrm{R}_{\text {out }}}{\mathrm{R}_{\text {in }}}\right)\) \(50=\beta\left(\frac{200}{100}\right)\) \(\beta=25\) Power gain \(=\beta \times(\) voltage gain \()\) \(=25 \times 50\)Power gain \(=1250\)
AIPMT- 2010
Semiconductor Electronics Material Devices and Simple Circuits
150887
In figure the input is across the terminals \(A\) and \(C\) and the output is across \(B\) and \(D\). Then the output is
1 Zero
2 Same as the input
3 Half wave rectified
4 Full wave rectified
Explanation:
D This figure is shown that its based on bridge rectifier. This is the most widely used full-wave rectifier. It used to four diode \(\mathrm{D}_1, \mathrm{D}_2, \mathrm{D}_3, \mathrm{D}_4\), connected in the four arms of a bridge.
Semiconductor Electronics Material Devices and Simple Circuits
150878
In adjoining figure, the input (a.c.) is across the terminals \(A\) and \(C\) and the output is across \(B\) and \(D\). Then output is
1 zero
2 the same as input
3 half wave rectified
4 full wave rectified
Explanation:
D In positive half cycle, \(D_1 \& D_3\) are forward biased \(D_2 \& D_4\) are reverse biased In negative half cycle, \(D_1 \& D_3\) are reverse bias \(D_2 \& D_4\) are forward bias And the direction will be same so output will like this, So it is a full wave rectifier.
AMU-2017
Semiconductor Electronics Material Devices and Simple Circuits
150880
The output voltage \((V)\) versus time \((t)\) curve of a rectifier is shown in the figure. The rms value of the output voltage is
1 \(\frac{V_0}{2}\)
2 \(\frac{\mathrm{V}_0}{\sqrt{2}}\)
3 \(\frac{\mathrm{V}_0}{2 \sqrt{2}}\)
4 \(\frac{2 \mathrm{~V}_0}{\pi}\)
Explanation:
B From given figure is a output wave form of full wave Rectifier. And rms value of output voltage for full wave Rectifier is \(\mathrm{V}_{\mathrm{rms}} =\frac{\mathrm{V}_{\mathrm{m}}}{\sqrt{2}}\) \(\therefore \quad \mathrm{V}_{\mathrm{rms}} =\frac{\mathrm{V}_{\mathrm{o}}}{\sqrt{2}} \quad\left(\therefore \mathrm{V}_{\mathrm{m}}=\mathrm{V}_{\mathrm{o}}\right)\)
AMU-2006
Semiconductor Electronics Material Devices and Simple Circuits
150884
A common emitter amplifier has a voltage gain of \(50 \mathrm{~V}\), an input impedance of \(100 \Omega\) and an output impedance of \(200 \Omega\). The power gain the amplifier is
1 500
2 1000
3 1250
4 50
Explanation:
C Given, Voltage gain \(=50 \mathrm{~V}\) Input impedance \(\left(\mathrm{R}_{\mathrm{in}}\right)=100 \Omega\) Output impedance \(\left(\mathrm{R}_{\text {out }}\right)=100 \Omega\) Voltage gain \(=\beta\left(\frac{\mathrm{R}_{\text {out }}}{\mathrm{R}_{\text {in }}}\right)\) \(50=\beta\left(\frac{200}{100}\right)\) \(\beta=25\) Power gain \(=\beta \times(\) voltage gain \()\) \(=25 \times 50\)Power gain \(=1250\)
AIPMT- 2010
Semiconductor Electronics Material Devices and Simple Circuits
150887
In figure the input is across the terminals \(A\) and \(C\) and the output is across \(B\) and \(D\). Then the output is
1 Zero
2 Same as the input
3 Half wave rectified
4 Full wave rectified
Explanation:
D This figure is shown that its based on bridge rectifier. This is the most widely used full-wave rectifier. It used to four diode \(\mathrm{D}_1, \mathrm{D}_2, \mathrm{D}_3, \mathrm{D}_4\), connected in the four arms of a bridge.
