- 1(current)
Q. No.The peak voltage in the output of a half-wave rectifier is \(30 ~\text{V}.\) The RMS voltage of the output wave is: (assuming no distortion in wave)
| 1. | \(\dfrac{30}{\sqrt2}~\text{V}\) | 2. | \(15 ~\text{V}\) |
| 3. | \(\dfrac{15}{\sqrt2}~\text{V}\) | 4. | \(10 ~\text{V}\) |
Subtopic: Rectifier |
Level 3: 35%-60%
Hints
In which of the following circuits is the current through the resistor \((R)\) always in the same direction (during both cycles), when \(\text{AC}\)-voltage is applied across \(A,B?\)
| 1. | \(A\) | 2. | \(B\) |
| 3. | Both \(A\) & \(B\) | 4. | Neither \(A\) nor \(B\) |
Subtopic: Rectifier |
55%
Level 3: 35%-60%
Hints
The voltage applied across \(AB\) is a \(50~\text{Hz}\) – AC with a peak voltage of \(300~\text V.\) The diode \(D_1\) is ideal. The current \(i,\) flowing in the direction indicated, is:
| 1. | AC with average zero |
| 2. | constant at \(3~\text A\) |
| 3. | unidirectional, but varying with time and peak value of \(3~\text A\) |
| 4. | unidirectional, but a positive peak of \(3~\text A\) and negative peak of \(1~\text A\) |
Subtopic: Rectifier |
74%
Level 2: 60%+
Hints
In the circuit shown in the figure (i), the (ideal) diode \(D_1\) has negligible resistance (in forward bias). The voltage \((V_A-V_B)=V_{AB}\) is time varying, as shown in the figure (ii):
The current through the resistance \(R=100~\Omega\) has a maximum positive value of:
1. \(0.05~\text A\)
2. \(0.1~\text A\)
3. \(0.025~\text A\)
4. \(500~\text A\)
The current through the resistance \(R=100~\Omega\) has a maximum positive value of:
1. \(0.05~\text A\)
2. \(0.1~\text A\)
3. \(0.025~\text A\)
4. \(500~\text A\)
Subtopic: Rectifier |
76%
Level 2: 60%+
Hints
In the circuit shown in the figure (i), the (ideal) diode \(D_1\) has negligible resistance (in forward bias). The voltage \((V_A-V_B)=V_{AB}\) is time varying, as shown in the figure (ii):
The diode \(D_1\) conducts during:
The diode \(D_1\) conducts during:
| 1. | \(PQ\) | 2. | \(QR\) |
| 3. | \(RS\) | 4. | \(SP'\) |
Subtopic: Rectifier |
73%
Level 2: 60%+
Hints
In the circuit shown in the figure (i), the (ideal) diode \(D_1\) has negligible resistance (in forward bias). The voltage \((V_A-V_B)=V_{AB}\) is time varying, as shown in the figure (ii):
The current \((i)\) through the resistance \(R=100~\Omega\) is:
The current \((i)\) through the resistance \(R=100~\Omega\) is:
| 1. | positive during all phases |
| 2. | positive during phase \(PQ\) |
| 3. | positive during phase \(QR\) |
| 4. | positive during phase \(SP'\) |
Subtopic: Rectifier |
75%
Level 2: 60%+
Hints
- 1(current)
Q. No.
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