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 half charged. initially. when capacitor is fully charged. when capacitor is almost 25% charged. when capacitor is half charged. initially. when capacitor is fully charged. when capacitor is almost 25% charged. ANSWER DOWNLOAD EXAMIANS APP
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? 1 Hz. 10 Hz. 1000 Hz. 100 Hz. 1 Hz. 10 Hz. 1000 Hz. 100 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits KCL works on the principle of which of the following law of conservation of charge. None of these both. law of conservation of energy. law of conservation of charge. None of these both. law of conservation of energy. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Two battery having unequal emf both a and d cannot be connected in parallel. can be connected in series only. cannot be connected in series. both a and d cannot be connected in parallel. can be connected in series only. cannot be connected in series. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits During charging, the electrolyte of a lead acid battery becomes stronger. weaker. there is no change in electrolyte. diluted with water. stronger. weaker. there is no change in electrolyte. diluted with water. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The unit of electric displacement vector is C - m. C/m2. C/m. Ampere-m. C - m. C/m2. C/m. Ampere-m. ANSWER DOWNLOAD EXAMIANS APP
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