In an AC circuit, if the current lags the voltage by 45 degrees, what is the type of load?
Practice Questions
1 question
Q1
In an AC circuit, if the current lags the voltage by 45 degrees, what is the type of load?
Resistive
Inductive
Capacitive
None of the above
If the current lags the voltage, it indicates an inductive load, as inductors cause the current to lag behind the voltage.
Questions & Step-by-step Solutions
1 item
Q
Q: In an AC circuit, if the current lags the voltage by 45 degrees, what is the type of load?
Solution: If the current lags the voltage, it indicates an inductive load, as inductors cause the current to lag behind the voltage.
Steps: 5
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 an inductive load, the current lags the voltage. This is because inductors store energy in a magnetic field and take time to respond to changes in voltage.
Step 5: Conclude that since the current lags the voltage by 45 degrees, the load in the circuit is inductive.
