0

Guest

Courses New

The plate resistance of a triode is 8 kΩ and the transconductance is 2.5 millimho. (a) If the plate voltage is increased by 48 V, and the grid voltage is kept constant, what will be the increase in the plate current? (b) With plate voltage kept constant at this increased value, how much should the grid voltage be decreased in order to bring the plate current back to its initial value?

The plate resistance of a triode is 8 kΩ and the transconductance is 2.5 millimho. (a) If the plate voltage is increased by 48 V, and the grid voltage is kept constant, what will be the increase in the plate current? (b) With plate voltage kept constant at this increased value, how much should the grid voltage be decreased in order to bring the plate current back to its initial value?

Grade:11

1 Answers

Navjyot Kalra
askIITians Faculty 654 Points
9 years ago
Sol. r base p = (δV base p/ δl base p) at constant V base g Consider the two points on V base g = -6 line r base p = (240 - 160)V/(13 - 3) * 10^-3 A = 80/10 *10^3 Ω = 8KΩ g base m = (δl base p/ δV base g)v base p = constant considering the point on 200 V line, g base m = (13 - 3) * 10^-3/[(-4) + (-8)] A = 10 * 10^-3/4 = 2.5 milli mho μ = r base p * gm = 8 * 10^3 Ω * 2.5 * 10^-3 Ω^-1 = 8 * 1.5 = 20

Think You Can Provide A Better Answer ?

Other Related Questions on Electric Current

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More