Inductive Reactance – Definition
Inductor is basically a coil or choke. When alternating current flows through the inductor then magnetic field creates voltages. If the number of turns increased then induce voltages increased. When the inductor provide resistance or reluctance for the flow of current through it is called Inductive Reactance. The symbol of inductive reactance is XL. The unit of XL is ohm.
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Inductive Reactance MCQs (Multiple Choice Questions)
Q1. The opposition of an inductor when AC Sine Wave supplied to the input is called _____________.
- capacitance reactance
- transformer
- inductive reactance
- resistance
Answer: c
Q2. When DC supply provides to the inductor then the value of inductive reactance is Zero. True / False
Answer: True
Q3. The unit of Inductive Reactance is ___________.
- henry
- ohm
Answer: b
Q4. The formula of Inductive Reactance (XL) is XL = 2πFL. True / False
Answer: True
Q5. On higher frequencies, the value of inductive reactance is high and inductance will be _____________.
- high
- low
- infinity
- medium
Answer: a
Q6. The indication of Sine Wave variation is 2π. True / False
Answer: True
Q7. Inductive Reactance is directly proportional to the _________________.
- frequency
- sine wave variation
- inductance
- all are correct
Answer: d
Q8. In the series inductive circuit, the total inductive reactance is directly proportion to the sum of individual inductance. True / False
Answer: True
Q9. In the Parallel inductive circuit, the total inductive reactance of two equal reactance is __________.
- double
- one half
- triple
- zero
Answer: b
Q10. Accordance to the ohm’s law, the voltage can be find through the formula of V = I × XL. True / False
Answer: True
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Q11. In the XL circuit, current lags voltage by___________.
- 45°
- 60°
- 90°
- 180°
Answer: c
Q12. In the Resister, the current is in-phase with voltage. True / False
Answer: True