Electric Circuits The resistance of a conductor of diameter d and length l is R Ω. If the diameter of the conductor is halved and its length is doubled, the resistance will be R Ω 8R Ω 4R Ω 2R Ω R Ω 8R Ω 4R Ω 2R Ω ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which variety of copper has the best mechanical strength ? Soft copper. Annealed copper. Cast copper. Hard drawn copper. Soft copper. Annealed copper. Cast copper. Hard drawn copper. 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 increases. each of them decreases. copper increases and germanium decreases. copper decreases and germanium increases. each of them increases. each of them decreases. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Galvanizing is the coating of lead. chromium. zinc. brass. lead. chromium. zinc. brass. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Under resonance condition the phase angle between voltage phase and current phase is 0° 90° 45° - 90° 0° 90° 45° - 90° ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A capacitor having a capacitance of 40 μF is connected across 250 V DC source. The charging current will be least when capacitor is almost 25% charged. initially. when capacitor is fully charged. when capacitor is half charged. when capacitor is almost 25% charged. initially. when capacitor is fully charged. when capacitor is half charged. ANSWER DOWNLOAD EXAMIANS APP
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