Two effects of over-excitation of a Class B...

Question 1 / 20BrjxNgSB81D7zyqiDCdw

Question 1 of 20BrjxNgSB81D7zyqiDCdw

Two effects of over-excitation of a Class B amplifier grid circuit are:

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Question 1 of 20

BrjxNgSB81D7zyqiDCdw

Two effects of over-excitation of a Class B amplifier grid circuit are:

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🔍 Key Concepts

• Class B amplifier operation – how conduction angle and bias affect current and efficiency • Over‑excitation of the grid – what happens when grid drive is stronger than required for normal operation • Relationships among grid current, plate current, efficiency, and distortion in vacuum‑tube amplifiers

💭 Think About

• When you drive a Class B amplifier harder than its normal operating point, which currents in the tube tend to increase first: grid current, plate current, or both? • How does pushing the tube beyond its linear region affect the waveform shape at the plate – more or less distortion? • If currents are becoming excessive due to over‑drive, does that normally improve or degrade plate efficiency?

✅ Before You Answer

• Be clear on what Class B bias means (conduction for about half the cycle) and what happens if you over‑drive from that point. • Review how excessive grid current and excessive plate current each show up as symptoms of over‑excitation. • Decide whether distortion typically increases or decreases when an amplifier is driven beyond its linear range.

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Question 1 of 20

Two effects of over-excitation of a Class B amplifier grid circuit are:

Increased plate efficiency, decreased power output

Decreased plate efficiency, excessive grid current

Excessive plate current, excessive distortion

Both B and C

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Question 1 / 20BrjxNgSB81D7zyqiDCdw

Question 1 of 20BrjxNgSB81D7zyqiDCdw

Two effects of over-excitation of a Class B amplifier grid circuit are:

Back

Question 1 of 20

BrjxNgSB81D7zyqiDCdw

Two effects of over-excitation of a Class B amplifier grid circuit are:

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed