A triode is operated in the linear region of its characteristics. If the plate voltage is slightly increased, the dynamic plate resistance will
(a) increase
(b) decrease
(c) remain almost the same
(d) become zero

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Solution

(c) remain almost the same

Dynamic resistance (r_P) is given by,
r_P = $\frac{∆ V_{P}}{∆ i_{P}}$
The triode is operating in the linear region. Therefore,
Change in the value of voltage = Change in the value of current
So, (r_P) will remain almost the same.

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A triode is operated in the linear region of its characteristics. If the plate voltage is slightly increased, the dynamic plate resistance will (a) increase (b) decrease (c) remain almost the same (d) become zero

(c) remain almost the same Dynamic resistance (rP) is given by, rP = ∆VP∆iP The triode is operating in the linear region. Therefore, Change in the value of voltage = Change in the value of current So, (rP) will remain almost the same.

A triode is operated in the linear region of its characteristics. If the plate voltage is slightly increased, the dynamic plate resistance will
(a) increase
(b) decrease
(c) remain almost the same
(d) become zero

(c) remain almost the same

Dynamic resistance (r_P) is given by,
r_P = $\frac{∆ V_{P}}{∆ i_{P}}$
The triode is operating in the linear region. Therefore,
Change in the value of voltage = Change in the value of current
So, (r_P) will remain almost the same.