Electric Circuits A 20 μF capacitor and 200 W, 220 V lamp is connected in series across a 220 V alternating supply. In which frequency of the supply the lamp will glow dimmest? 1000 Hz. 100 Hz. 1 Hz. 10 Hz. 1000 Hz. 100 Hz. 1 Hz. 10 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Phase voltages of a star connected alternator are ER = 240∠0o V, EY = 240∠-120o V and EB = 240∠ + 120o V. What is the phase sequence of the system? RYB. BYR. RBY. YBR. RYB. BYR. RBY. YBR. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A 6 V lead acid battery has an internal resistance of 0.01 Ω. How much current will flow when the battery is short circuited? 100 A. 6 A. 1 A. 600 A. 100 A. 6 A. 1 A. 600 A. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which of the following materials has highest electrical conductivity ? Copper. Steel. Aluminium. Silver. Copper. Steel. Aluminium. Silver. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits For same voltage, the ratio resistance of 100 W lamp to resistance of 25 W lamp is 1/4. 16. 4. 1. 1/4. 16. 4. 1. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Silver coating is provided for bearing surfaces. decorative purpose. all of above. protective purpose. bearing surfaces. decorative purpose. all of above. protective purpose. ANSWER DOWNLOAD EXAMIANS APP
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