What is the maximum permissible RMS value of...

Question 1 / 20GJni4EIVNKANnRShoy0Q

Question 1 of 20GJni4EIVNKANnRShoy0Q

What is the maximum permissible RMS value of audio voltage which can be applied to the grid of a Class A audio amplifier which has a grid bias of 10 V?

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Question 1 of 20

GJni4EIVNKANnRShoy0Q

What is the maximum permissible RMS value of audio voltage which can be applied to the grid of a Class A audio amplifier which has a grid bias of 10 V?

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🔍 Key Concepts

• Relationship between grid bias voltage and maximum undistorted input signal in a Class A amplifier • Difference between peak voltage and RMS (root mean square) voltage for a sine wave • How overdriving the grid relative to its bias causes distortion or cutoff

💭 Think About

• What happens to the grid current and waveform if the instantaneous input voltage tries to exceed the grid bias in the positive direction? • For a sine wave, how do you convert from peak voltage to RMS voltage (numerical factor)? • If the grid bias is 10 V, what is the largest sine-wave peak you can apply without driving the tube into grid current or cutoff?

✅ Before You Answer

• Confirm that grid bias (10 V) is a DC value and your input is an AC sine wave superimposed on it • Use the correct conversion: V_RMS = V_peak / √2 for a sine wave, and avoid mixing up RMS with peak-to-peak • Make sure the maximum instantaneous input does not exceed the grid bias in a way that would cause distortion (think in terms of the peak, not RMS, first)

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Question 1 of 20

What is the maximum permissible RMS value of audio voltage which can be applied to the grid of a Class A audio amplifier which has a grid bias of 10 V?

7.07 V

8 V

10 V

14.14 V

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Question 1 / 20GJni4EIVNKANnRShoy0Q

Question 1 of 20GJni4EIVNKANnRShoy0Q

What is the maximum permissible RMS value of audio voltage which can be applied to the grid of a Class A audio amplifier which has a grid bias of 10 V?

Back

Question 1 of 20

GJni4EIVNKANnRShoy0Q

What is the maximum permissible RMS value of audio voltage which can be applied to the grid of a Class A audio amplifier which has a grid bias of 10 V?

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