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An ac voltage is applied to a resistance R and an inductor L in series. If R and the inductive reactance are both equal to 3Ω, the phase difference between the applied voltage and the current in the circuit is
Options
(a) π/6
(b) π/4
(c) π/2
(d) zero
Correct Answer:
π/4
Explanation:
The phase difference is given by
tan ? = Xₗ / R = 3/3 = 1
? = π/4
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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- When aluminium is added as an impurity to silicon, the resulting material is
- A silver wire of radius 0.1 cm carries a current of 2A. If the charge density in silver
- A magnet of length 10 cm and magnetic moment 1 A-m² is placed
- The de-Broglie wavelength of an electron is the same as that of a 50 KeV X-ray photon.
- An atom bomb weighing 1 kg explodes releasing 9×10¹³ J of energy.
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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