SSC JE Electrical 2019 with solution SET-1 An electric heater is connected across 230V and it draws a current of 2A. Then the resistance offered by the heater is? 290 ohm 115 ohm 29 ohm 11.5 ohm 290 ohm 115 ohm 29 ohm 11.5 ohm ANSWER EXPLANATION DOWNLOAD EXAMIANS APP GivenVoltage V = 230 VCurrent I = 2 AResistance R = V/IR = 230/2 = 115 Ω
SSC JE Electrical 2019 with solution SET-1 Extension of moving iron ammeter range can be done by using Capacitor Multiplier Shunt Inductor Capacitor Multiplier Shunt Inductor ANSWER DOWNLOAD EXAMIANS APP
SSC JE Electrical 2019 with solution SET-1 In the speed-time curve of a train, speed in and time are plotted km/s; sec km/s; hour km/h; sec km/h; hour km/s; sec km/s; hour km/h; sec km/h; hour ANSWER DOWNLOAD EXAMIANS APP
SSC JE Electrical 2019 with solution SET-1 Hysteresis loss is NOT a function of The volume of a material Frequency Ambient temperature Steinmetz co-efficient of material The volume of a material Frequency Ambient temperature Steinmetz co-efficient of material ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Hysteresis Loss = Kh × BM1.67 × f × v wattswhereKh = Hysteresis constant depends upon the materialBm = Maximum flux densityf = frequencyv = Volume of the coreHence the hysteresis loss does not depend upon the ambient temperature.
SSC JE Electrical 2019 with solution SET-1 A single-phase circuit’s power factor can be measured with a/an Combination of a voltmeter, ammeter, and wattmeter Wattmeter alone Combination of a voltmeter and ammeter Energy meter alone Combination of a voltmeter, ammeter, and wattmeter Wattmeter alone Combination of a voltmeter and ammeter Energy meter alone ANSWER DOWNLOAD EXAMIANS APP
SSC JE Electrical 2019 with solution SET-1 Find the mutual inductance between two ideally coupled coils of 2H and 8H 2 H 8 H 4 H 16 H 2 H 8 H 4 H 16 H ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Mutual inductance between the two coils is K = √L1.L2K = √2 × 8k = √16k = 4 H
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