A triode value has amplification factor 21 and dynamic plate resistance 10kΩ. This is used as an amplifier with a load of 20 kΩ . Find the gain factor of the amplifier.
The gain factor of a triode value amplifier is A=μ1+rpRL
The gain factor of a triode value amplifier is A=μ1+rpRLwhere μ is the amplification factor, rp is the plate resistance and RL is the load resistance. Thus,
The gain factor of a triode value amplifier is A=μ1+rpRLwhere μ is the amplification factor, rp is the plate resistance and RL is the load resistance. Thus,A=211+10kΩ20kΩ=14.
The dynamic resistance is described as an anode resistance or plate resistance.It represents the resistance that the anode or plate circuits offers to a small change in voltage.A
Amplification factor
The amplification factor is the ratio of an anode voltage to the grid voltage. It is represented by μ The relationship between plate resistance, mutual conductance and amplification factor is given as
Answers & Comments
Answer:
The gain factor of a triode value amplifier is A=μ1+rpRL
The gain factor of a triode value amplifier is A=μ1+rpRLwhere μ is the amplification factor, rp is the plate resistance and RL is the load resistance. Thus,
The gain factor of a triode value amplifier is A=μ1+rpRLwhere μ is the amplification factor, rp is the plate resistance and RL is the load resistance. Thus,A=211+10kΩ20kΩ=14.
Explanation:
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Verified answer
Plate Resistance
The dynamic resistance is described as an anode resistance or plate resistance.It represents the resistance that the anode or plate circuits offers to a small change in voltage.A
Amplification factor
The amplification factor is the ratio of an anode voltage to the grid voltage. It is represented by μ The relationship between plate resistance, mutual conductance and amplification factor is given as
μ = rp × gm
rp is plate resistance, gm is mutual conductance
Calculation:
Given plate resistance rp = 10 kΩ
Amplification factor μ = 20
mutual conductance gm = ?
⇒ gm = 2 × 10-3 mho
So, the correct option is 2 × 10-3 mho