Electric Circuits An AC voltage of 200 V at 50 Hz is applied to a coil which draws 5 A and dissipates 1000 W. The resistance and impedance of the coil respectively are 50 Ω and 200 Ω. 25 Ω and 5 Ω. 40 Ω and 200 Ω. 40 Ω and 40 Ω. 50 Ω and 200 Ω. 25 Ω and 5 Ω. 40 Ω and 200 Ω. 40 Ω and 40 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A piece of copper and another piece of germanium are cooled from room temperature to 80K. The resistance of copper decreases and germanium increases. copper increases and germanium decreases. each of them decreases. each of them increases. copper decreases and germanium increases. copper increases and germanium decreases. each of them decreases. each of them increases. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Capacitor does not allow the sudden change of voltage power None of these current voltage power None of these current ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Third pin of a 3 pin plug is thicker and longer none of these. for protection purpose. for designing purpose. all pins are of same size. none of these. for protection purpose. for designing purpose. all pins are of same size. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A ceramic and a mica capacitor have the same physical dimension. Which has the higher value of capacitance? Ceramic capacitor. Mica capacitor. Both have identical value of capacitor. It is impossible to conclude on the basis of information supplied. Ceramic capacitor. Mica capacitor. Both have identical value of capacitor. It is impossible to conclude on the basis of information supplied. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Four resistances 80 Ohm, 50 Ohm, 25 Ohm and R are connected in parallel. Current through 25 Ohm resistance is 4A. Total current of supply is 10A. The value of R will be 76.66. 36.36. 40.25. 66.66. 76.66. 36.36. 40.25. 66.66. ANSWER DOWNLOAD EXAMIANS APP