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 0.4. 10. 1. 0.85. 0.4. 10. 1. 0.85. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A parallel plate capacitor with air as dielectric, force between plate is F. If capacitor is now immersed water of dielectric εr, force between plate will be – F εr. εr/F. 0. F. F εr. εr/F. 0. F. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In above question, if circuit efficiency is 90 %. What will be output power ? 37.3 kW. 35.6 kW. 40 kW. 30 kW. 37.3 kW. 35.6 kW. 40 kW. 30 kW. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits When water is added to sulphuric acid lot of heat is generated. acid particles get separated. colour of acid changes. water start boiling. lot of heat is generated. acid particles get separated. colour of acid changes. water start boiling. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A ceramic and a mica capacitor have the same physical dimension. Which has the higher value of capacitance? Mica capacitor. It is impossible to conclude on the basis of information supplied. Both have identical value of capacitor. Ceramic capacitor. Mica capacitor. It is impossible to conclude on the basis of information supplied. Both have identical value of capacitor. Ceramic capacitor. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits To reduce hysteresis loss, we use copper bars. soft-iron. laminated sheets. CRGO steel. copper bars. soft-iron. laminated sheets. CRGO steel. ANSWER DOWNLOAD EXAMIANS APP
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