A triode has a plate resistance of 10 k Ω and amplification factor 24. If the input signal voltage is 0.4 V (r.m.s.), and the load resistance is 10 k Ω, then, the output voltage (r.m.s.) is

Question

A triode has a plate resistance of 10 k Ω and amplification factor 24. If the input signal voltage is 0.4 V (r.m.s.), and the load resistance is 10 k Ω, then, the output voltage (r.m.s.) is (A) 4.8 V (B) 9.6 V (C) 12.0 V (D) none of these

Tardigrade Admin · Accepted Answer

Use V0=A Vs Now A=(24 × 10 k/10 k+10 k)=(24 × 10/20)=12 Therefore, V0=12 × 0.4 volt(r.m.s) =4.8 V

Q. A triode has a plate resistance of $10 k Ω$ and amplification factor $24$ . If the input signal voltage is $0.4 V$ (r.m.s.), and the load resistance is $10 k Ω$ , then, the output voltage (r.m.s.) is

$4.8 V$

$9.6 V$

$12.0 V$

none of these

Use $V_{0} = A V_{s}$
Now $A = \frac{24 \times 10 k}{10 k + 10 k} = \frac{24 \times 10}{20} = 12$
Therefore, $V_{0} = 12 \times 0.4$ volt(r.m.s) $= 4.8 V$

Q. A triode has a plate resistance of 10kΩ and amplification factor 24. If the input signal voltage is 0.4V (r.m.s.), and the load resistance is 10kΩ, then, the output voltage (r.m.s.) is

4.8V

9.6V

12.0V