In an AC circuit, if the voltage is given by V(t) = 100 sin(100t), what is the R

Practice Questions

Q1
In an AC circuit, if the voltage is given by V(t) = 100 sin(100t), what is the RMS voltage? (2023)
  1. 100 V
  2. 70.7 V
  3. 50 V
  4. 141.4 V

Questions & Step-by-Step Solutions

In an AC circuit, if the voltage is given by V(t) = 100 sin(100t), what is the RMS voltage? (2023)
  • Step 1: Identify the given voltage function, which is V(t) = 100 sin(100t).
  • Step 2: Recognize that the maximum voltage (V0) in this function is 100 volts.
  • Step 3: Understand that the RMS (Root Mean Square) voltage can be calculated using the formula V_rms = V0 / √2.
  • Step 4: Substitute the maximum voltage into the formula: V_rms = 100 / √2.
  • Step 5: Calculate the value of 100 / √2, which is approximately 70.7 volts.
  • Step 6: Conclude that the RMS voltage is 70.7 V.
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