Electric Circuits If C be the capacitance, V be the potential difference and I be the current, then I / CV will have the unit of reactive power. time. power. frequency. reactive power. time. power. frequency. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A variable capacitance is one whose capacitance can be changed manually or by mechanical force. changes with voltage. changes with temperature. changes with time. can be changed manually or by mechanical force. changes with voltage. changes with temperature. changes with time. 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 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 Internal heating of a capacitor is usually attributed to electron movement. dielectric charge. plate vibration. leakage resistance. electron movement. dielectric charge. plate vibration. leakage resistance. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In a capacitor, the electrical energy is stored in none of above. both ‘electric field’ and magnetic field’. magnetic field. electric field. none of above. both ‘electric field’ and magnetic field’. magnetic field. electric field. ANSWER DOWNLOAD EXAMIANS APP
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