Electric Circuits In which of the circuits power factor can be zero? both ‘a’ and ‘b’ capacitive. inductive. resistive. both ‘a’ and ‘b’ capacitive. inductive. resistive. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A 10 μF capacitor and 100 W, 220 V lamp is connected in series across a 220 V alternating supply. In which frequency of the supply the lamp will glow brightest? 10 Hz. 1000 Hz. 100 Hz. 1 Hz. 10 Hz. 1000 Hz. 100 Hz. 1 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The electrical conductivity of metal is typically of the order of (in ohm - m) 105. 107. 10 - 6. 10 - 4. 105. 107. 10 - 6. 10 - 4. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Unit of apparent power is VAR. Watts. KWhr. VA. VAR. Watts. KWhr. VA. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The capacitive reactance of an electric circuit is 50 Ohms. The frequency of supply becomes doubled. What is the new capacitive reactance? 100 Ohms. 25 Ohms. 50 Ohms. 200 Ohms. 100 Ohms. 25 Ohms. 50 Ohms. 200 Ohms. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits If the three colour bands of a resistor are grey, violet and gold, what is the value of the resistor? 8.7 ohms. 7.7 ohms. 6.7 ohms. 9.7 ohms. 8.7 ohms. 7.7 ohms. 6.7 ohms. 9.7 ohms. ANSWER DOWNLOAD EXAMIANS APP
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