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A MOSFET in saturation has a drain current of 1mA for VDS = 0.5V. If the channel length
modulation coefficient is 0.05 V-1 , the output resistance (in k?) of the MOSFET is
modulation coefficient is 0.05 V-1 , the output resistance (in k?) of the MOSFET is
Correct answer is '20'. Can you explain this answer?
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A MOSFET in saturation has a drain current of 1mA for VDS = 0.5V. If t...
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A MOSFET in saturation has a drain current of 1mA for VDS = 0.5V. If t...
Given data:
- Drain current (ID) in saturation mode = 1mA
- Drain-source voltage (VDS) = 0.5V
- Channel length modulation coefficient (λ) = 0.05 V^-1
To find:
- Output resistance of the MOSFET
Explanation:
The output resistance (ro) of a MOSFET in saturation mode can be calculated using the following formula:
ro = 1 / (λ * ID)
Where,
ro = Output resistance
λ = Channel length modulation coefficient
ID = Drain current
Calculation:
Given data:
ID = 1mA
VDS = 0.5V
λ = 0.05 V^-1
Using the formula, we can calculate the output resistance (ro):
ro = 1 / (λ * ID)
= 1 / (0.05 * 1mA)
= 1 / (0.05 * 0.001)
= 1 / 0.00005
= 20,000 Ω
The output resistance of the MOSFET is 20,000 Ω, which is equivalent to 20 kΩ.
Conclusion:
The output resistance of the MOSFET is 20 kΩ.
- Drain current (ID) in saturation mode = 1mA
- Drain-source voltage (VDS) = 0.5V
- Channel length modulation coefficient (λ) = 0.05 V^-1
To find:
- Output resistance of the MOSFET
Explanation:
The output resistance (ro) of a MOSFET in saturation mode can be calculated using the following formula:
ro = 1 / (λ * ID)
Where,
ro = Output resistance
λ = Channel length modulation coefficient
ID = Drain current
Calculation:
Given data:
ID = 1mA
VDS = 0.5V
λ = 0.05 V^-1
Using the formula, we can calculate the output resistance (ro):
ro = 1 / (λ * ID)
= 1 / (0.05 * 1mA)
= 1 / (0.05 * 0.001)
= 1 / 0.00005
= 20,000 Ω
The output resistance of the MOSFET is 20,000 Ω, which is equivalent to 20 kΩ.
Conclusion:
The output resistance of the MOSFET is 20 kΩ.
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A MOSFET in saturation has a drain current of 1mA for VDS = 0.5V. If the channel lengthmodulation coefficient is 0.05 V-1 , the output resistance (in k?)of the MOSFET isCorrect answer is '20'. Can you explain this answer?
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