Low plate current may be caused by:

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N7jNstOtbugCsWoyGdfg

Low plate current may be caused by:

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🔍 Key Concepts

• How plate current in a tube depends on filament (cathode) emission, grid bias, and screen grid voltage • What happens to electron flow when bias is more negative or when the grid circuit is open • How a screen grid and its supply voltage affect plate current in a tetrode/pentode

💭 Think About

• For each option, ask yourself: would this condition tend to REDUCE electron flow from cathode to plate, or increase it? • Think about how low filament voltage changes the number of electrons available for emission—does that raise or lower plate current? • Consider what happens to plate current if the grid becomes more negative (via bias or open grid) or if the screen grid voltage drops or is bypassed incorrectly.

✅ Before You Answer

• For each listed fault, decide: does it make plate current lower, higher, or leave it mostly unchanged? Eliminate any that clearly would not LOWER plate current. • Review how an open grid circuit usually drives the grid potential and what that does to plate current. • Confirm how low screen grid voltage versus a shorted screen bypass capacitor would influence the plate current in a screen-grid tube.

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Study

Question 1 of 20N7jNstOtbugCsWoyGdfg

Low plate current may be caused by:

Back

Question 1 of 20

N7jNstOtbugCsWoyGdfg

Low plate current may be caused by:

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