Electric Circuits A wire 2.5 m long is bent into a square. An current of 100 A flowing through the wire will produce a magnetizing force at the center of the square, equal to 196 AT / m. 72 AT / m. 222 AT / m. 144 AT / m. 196 AT / m. 72 AT / m. 222 AT / m. 144 AT / m. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Two identical resistors are first connected in parallel then in series. The ratio of resultant resistance of the first combination to the second will be 2. 0.25. 4. 0.5. 2. 0.25. 4. 0.5. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits What is the mass number of an element that has 19 protons, 19 electrons, and 20 neutrons? 19. 20. 38. 39. 19. 20. 38. 39. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits If the length of a wire of resistance R is uniformly stretched to n times its original value, what will be its new resistance nR . R / n2. n2 / R. n2R. nR . R / n2. n2 / R. n2R. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Poorest conductor of electricity is Aluminium. Steel. Silver. Carbon. Aluminium. Steel. Silver. Carbon. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A series circuit consists of R = 20 Ω, L = 20 mH, and AC supply 60 V with f = 100 Hz. The phase angle of current in respect of supply voltage will be 40.4o. 28.8o. 20.2o. 32.1o. 40.4o. 28.8o. 20.2o. 32.1o. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS