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The antenna current of an AM transmitter is 8 A if only the carrier is sent, but it increases to 8.93 A if the carrier is modulated by a single sinusoidal wave. What is the antenna current when the percent of modulation is 80%?

  • a)
    9.2 A

  • b)
    8.6 A  

  • c)
    6.6 A

  • d)
    7.0 A

Correct answer is option 'A'. Can you explain this answer?
Verified Answer
The antenna current of an AM transmitter is 8 A if only the carrier is...
Given, Ic = 8 a, ma = 0.8

We know that, antenna current is

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Most Upvoted Answer
The antenna current of an AM transmitter is 8 A if only the carrier is...
Given data:
Antenna current when carrier is sent (Ic) = 8 A
Antenna current when carrier is modulated (Im) = 8.93 A

To find:
Antenna current when the percent of modulation is 80%

Solution:
The modulation index (m) can be calculated using the formula:
m = (Im - Ic) / Ic

Substituting the given values:
m = (8.93 - 8) / 8
m = 0.93 / 8
m = 0.11625

The percent of modulation (μ) can be calculated using the formula:
μ = m * 100

Substituting the value of m:
μ = 0.11625 * 100
μ = 11.625%

Now, let's find the antenna current when the percent of modulation is 80%.

The formula for the antenna current (I) when the percent of modulation is given can be calculated using the formula:
I = Ic * (1 + μ/100)

Substituting the values:
I = 8 * (1 + 80/100)
I = 8 * (1 + 0.8)
I = 8 * 1.8
I = 14.4 A

Therefore, the antenna current when the percent of modulation is 80% is 14.4 A.

Since none of the given options match the calculated value, it seems there may be an error in the question or the options provided.
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The antenna current of an AM transmitter is 8 A if only the carrier is sent, but it increases to 8.93 A if the carrier is modulated by a single sinusoidal wave. What is the antenna current when the percent of modulation is 80%?a)9.2 Ab)8.6 Ac)6.6 Ad)7.0 ACorrect answer is option 'A'. Can you explain this answer?
Question Description
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