Electric Circuits The hot resistance of a tungsten lamp is about 10 times the cold resistance. Accordingly, cold resistance of a 100 W, 200 V lamp will be 4 Ω. 400 Ω. 800 Ω. 40 Ω. 4 Ω. 400 Ω. 800 Ω. 40 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A balanced star connected load with impedance of 30j - 300 Ω is supplied from a 3 - phase, 4-wire, 173 V system, the voltages to neutral being 100j -900, 100j - 300 and 100j -1500 V. The current in neutral wire is 5 A. 50 A. zero. 8.85 A. 5 A. 50 A. zero. 8.85 A. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits What is the reactive power in AC operation? Real power × sinθ. Real power × cosθ. Apparent power × cosθ. Apparent power × sinθ. Real power × sinθ. Real power × cosθ. Apparent power × cosθ. Apparent power × sinθ. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Atoms have no electric charge because they have an equal number of electrons and protons. have an equal number of neutrons and protons. have neutrons in their nuclei. have an equal number of charged and non charged particles. have an equal number of electrons and protons. have an equal number of neutrons and protons. have neutrons in their nuclei. have an equal number of charged and non charged particles. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Silver coating is provided for decorative purpose. all of above. protective purpose. bearing surfaces. decorative purpose. all of above. protective purpose. bearing surfaces. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which of the followings is the expression for energy stored in a capacitor? Cv. C dv / dt. C / v. (1 / 2) Cv2. Cv. C dv / dt. C / v. (1 / 2) Cv2. ANSWER DOWNLOAD EXAMIANS APP
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