Electric Circuits A current is said to be alternating when it changes in both ‘a’ and ‘b’. direction. none of these. magnitude. both ‘a’ and ‘b’. direction. none of these. magnitude. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits If a resistor is connected across the voltage source and the frequency of voltage and current wave form is 50Hz, then what is frequency of instantaneous power 50 Hz. 0 Hz. 150 Hz. 100 Hz. 50 Hz. 0 Hz. 150 Hz. 100 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Two 1 kΩ, 1 W resistors are connected in series. Their combine resistance and wattage will be 1 kΩ, 1 W. 0.5 kΩ, 2 W. 2 kΩ, 0.5 W. 2 kΩ, 1 W. 1 kΩ, 1 W. 0.5 kΩ, 2 W. 2 kΩ, 0.5 W. 2 kΩ, 1 W. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In a capacitor, the electrical energy is stored in both ‘electric field’ and magnetic field’. magnetic field. none of above. electric field. both ‘electric field’ and magnetic field’. magnetic field. none of above. electric field. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which part of magnetic path requires largest mmf? Air gap. Coil. Inductance. Core. Air gap. Coil. Inductance. Core. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Image impedance can be written by using short circuit impedance(Zsc)and open circuit impedance(Zoc) as Zsc/Zoc (Zsc . Zoc)½ Zsc-Zoc Zsc+Zoc Zsc/Zoc (Zsc . Zoc)½ Zsc-Zoc Zsc+Zoc ANSWER DOWNLOAD EXAMIANS APP
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