Electric Circuits Power factor can be defined as ratio of resistance versus impedance. cosine of angle between voltage and current. sine of voltage and current. both option B and C. ratio of resistance versus impedance. cosine of angle between voltage and current. sine of voltage and current. both option B and C. 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. It is impossible to conclude on the basis of information supplied. Both have identical value of capacitor. Mica capacitor. Ceramic capacitor. It is impossible to conclude on the basis of information supplied. Both have identical value of capacitor. Mica capacitor. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The internal resistance of lead acid cell is _______________ that of Edison cell. equal to. none of above. less than. more than. equal to. none of above. less than. more than. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A 3 – φ delta connected symmetrical load consumes P Watts of power from a balanced supply. If the same load is connected in star to the same supply then what is the power consumption? P. 3P. √3P. P/3. P. 3P. √3P. P/3. 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 increases and germanium decreases. copper decreases and germanium increases. each of them decreases. each of them increases. copper increases and germanium decreases. copper decreases and germanium increases. each of them decreases. each of them increases. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The energy stored by a capacitor is given by 1/2 QV. 1/2 CV2. all of them. Q2 / 2C. 1/2 QV. 1/2 CV2. all of them. Q2 / 2C. ANSWER DOWNLOAD EXAMIANS APP
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