In L C circuit the inductance L = 40 mH and capacitance C = 100 μF . If a voltage V t = 10 s i n 314 t is applied to the circuit, the current in the circuit is given as:

Question

In L C circuit the inductance L = 40 mH and capacitance C = 100 μF . If a voltage V t = 10 s i n 314 t is applied to the circuit, the current in the circuit is given as:, 0.52 cos ⁡ 314 t, 10 cos ⁡ 314 t, 5.2 cos ⁡ 314 t, 0.52 sin ⁡ 314 t

MARKS App · Accepted Answer

z = R 2 + X C - X L 2 R = 0 Z = X C - X L = 1 ω C - ω L = 1 314 × 100 × 10 - 6 - 314 × 40 × 10 - 3 = 31.84 - 12.56 = 19.28 Ω i = V 0 Z sin ⁡ 314 t + π 2 ∴ i = V 0 Z cos ⁡ 314 t ⇒ i = 10 19.28 cos ⁡ 314 t ⇒ i = 0.52 cos ⁡ 314 t

Search any question & find its solution

Looking for more such questions to practice?