Electric Circuits When a lossy capacitor with a dielectric of permittivity ε and conductivity σ operates at a frequency ω the loss tangent for the capacitor is given by ω σ/ε. σ/ω ε. ω ε/σ. σ ω ε. ω σ/ε. σ/ω ε. ω ε/σ. σ ω ε. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits What is the relation between line voltage and phase voltage in case of delta connection? VL = VP. None of these. VL = 1/ √3 VP. VL = √3 VP. VL = VP. None of these. VL = 1/ √3 VP. VL = √3 VP. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A current of 4 A flows in an ac circuit when 100 V dc is applied to it whereas it takes 250 v ac to produce the same current the power factor of the circuit is 10. 0.4. 1. 0.85. 10. 0.4. 1. 0.85. 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? 10 Hz. 1000 Hz. 1 Hz. 100 Hz. 10 Hz. 1000 Hz. 1 Hz. 100 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Magnetic flux has the unit of Newton Weber Tesla Ampere turn Newton Weber Tesla Ampere turn ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Container of a lead acid battery ceramics. any of above. molded hard rubber. celluloid. ceramics. any of above. molded hard rubber. celluloid. ANSWER DOWNLOAD EXAMIANS APP
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