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? 1000 Hz. 100 Hz. 10 Hz. 1 Hz. 1000 Hz. 100 Hz. 10 Hz. 1 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A circuit contains two unequal resistor in parallel voltage drops are according to their resistive value. currents in both are same. voltage drops across both are same. heat losses in both are same. voltage drops are according to their resistive value. currents in both are same. voltage drops across both are same. heat losses in both are same. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The breakdown voltage for paper capacitor is usually 20 to 60 volts. more than 10000 volts. 2000 to 3000 volts. 200 to 1600 volts. 20 to 60 volts. more than 10000 volts. 2000 to 3000 volts. 200 to 1600 volts. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Atoms have no electric charge because they have neutrons in their nuclei. have an equal number of neutrons and protons. have an equal number of electrons and protons. have an equal number of charged and non charged particles. have neutrons in their nuclei. have an equal number of neutrons and protons. have an equal number of electrons and protons. have an equal number of charged and non charged particles. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits If the sheet of a backelite is inserted between the plates of an air capacitor, the capacitance will becomes zero. decrease. remains unchanged. increase. becomes zero. decrease. remains unchanged. increase. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits If a function is shifted by 'T', then it is correctly represented as f (t) u (t). f (t-T) u (t). f (t) u (t-T). f (t-T) u (t-T). f (t) u (t). f (t-T) u (t). f (t) u (t-T). f (t-T) u (t-T). ANSWER DOWNLOAD EXAMIANS APP
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