In the circuit shown, if 𝑣(𝑡) = 2 sin(1000 𝑡) volts, 𝑅 = 1 kΩ and 𝐶 = 1 𝜇F, then the steady-state current 𝑖(𝑡), in milliamperes (mA), is

August 5, 2023

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Q. In the circuit shown, if 𝑣(𝑡) = 2 sin(1000 𝑡) volts, 𝑅 = 1 kΩ and 𝐶 = 1 𝜇F, then the steady-state current 𝑖(𝑡), in milliamperes (mA), is

(A) sin(1000 𝑡) + cos(1000 𝑡)	(B) 2 sin(1000 𝑡) + 2 cos(1000 𝑡)
(C) 3 sin(1000 𝑡) + cos(1000 𝑡)	(D) sin(1000 𝑡) + 3 cos(1000 𝑡)

Ans: 3 sin(1000 𝑡) + cos(1000 𝑡)

Solution:

A glass fibre of 5 micron diameter is subjected to a tensile stress of 20 MPa