Question Detail

PHY 102 Test Compilation PHY 102 11 Objective Question
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Question

An alternating voltage whose peak value is 80 volts is connected across a 60 ohms resistor. What is the value of rms current?
Options
A 1.33 A
B 0.94 A
Correct Answer
C 1.88A
D 0.67A
Correct Answer

Option B is the correct answer.

Detailed Explanation

Given: Peak voltage (Vpeak) = 80 V, Resistance (R) = 60 ohms.First, calculate the RMS voltage (Vrms):Vrms = Vpeak / √2 = 80 V / 1.414 ≈ 56.57 V.Now, calculate the RMS current (Irms) using Ohm's Law:Irms = Vrms / R = 56.57 V / 60 ohms ≈ 0.9428 A.

Hint

Remember the relationship between peak voltage and RMS voltage in an AC circuit.

Question Info

Course: PHY 102
Topic: Test Compilation PHY 102 11
Type: Objective
Difficulty: Not specified
Question 951 of 1819
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