In an AC circuit, if the current lags the voltage by 30 degrees, what type of lo
Practice Questions
Q1
In an AC circuit, if the current lags the voltage by 30 degrees, what type of load is present?
Resistive
Inductive
Capacitive
None of the above
Questions & Step-by-Step Solutions
In an AC circuit, if the current lags the voltage by 30 degrees, what type of load is present?
Step 1: Understand what AC circuit means. AC stands for Alternating Current, where the current and voltage change direction periodically.
Step 2: Know what it means for current to lag behind voltage. If current lags, it means that the current reaches its peak value after the voltage does.
Step 3: Identify the types of loads in an AC circuit. There are mainly three types: resistive, capacitive, and inductive.
Step 4: Recognize that in a resistive load, current and voltage are in phase (they peak at the same time).
Step 5: Understand that in a capacitive load, current leads the voltage (current peaks before voltage).
Step 6: Conclude that if the current lags the voltage, it must be due to an inductive load, as inductors cause this lag.
