electric circuit is built up by connecting in series an alternating and sinusoidal power source of equency 50HZ, with an ohmic conductor of resistance r, and a coil of inductance L and resistance An ammeter connected in the circuit reads 3.5 A. A voltmeter across the power source reads O v. Given that the voltage across the ohmic conductor is U, = 120 V and the voltage across the l is Uz = 120 V. 16.) Determine the value of R. A) 23.3 Ω B) 33.8 Ω Q13.5 Ω D) 73.3 Ω E) 19.30 17.) Determine the value of L. A) 2.3 H B) 8.8 H C) 4.0 2 D) 13.2 H E) 7.6 H 18.) Determine an expression for the instantaneous current in the circuit. A) i(t) = 3.5 cos(100nt) B) i(t) = 3.5/2 cos(100rt) C) i(t) = 35 cos(100nt) D) i(t) = 35VZ cos(100nt) E) None of the above capacitor of capacitance C is added to the circuit in series. 19.) Determine the value of the capacitance C for which the effective current I remains the same thout changing the voltage. 1.3 x 10-*F B) 4.7 x 10-*F C) 7.7 x 10-6F D) 1.3 x 10-6F E) None of the above
electric circuit is built up by connecting in series an alternating and sinusoidal power source of equency 50HZ, with an ohmic conductor of resistance r, and a coil of inductance L and resistance An ammeter connected in the circuit reads 3.5 A. A voltmeter across the power source reads O v. Given that the voltage across the ohmic conductor is U, = 120 V and the voltage across the l is Uz = 120 V. 16.) Determine the value of R. A) 23.3 Ω B) 33.8 Ω Q13.5 Ω D) 73.3 Ω E) 19.30 17.) Determine the value of L. A) 2.3 H B) 8.8 H C) 4.0 2 D) 13.2 H E) 7.6 H 18.) Determine an expression for the instantaneous current in the circuit. A) i(t) = 3.5 cos(100nt) B) i(t) = 3.5/2 cos(100rt) C) i(t) = 35 cos(100nt) D) i(t) = 35VZ cos(100nt) E) None of the above capacitor of capacitance C is added to the circuit in series. 19.) Determine the value of the capacitance C for which the effective current I remains the same thout changing the voltage. 1.3 x 10-*F B) 4.7 x 10-*F C) 7.7 x 10-6F D) 1.3 x 10-6F E) None of the above
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter18: Resistive-inductive Parallel Circuits
Section: Chapter Questions
Problem 1PA: Incandescent lighting of 500 W is connected in parallel with an inductive load. A clamp-on ammeter...
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