SSC JE Electrical 2019 with solution SET-1 Extension of moving iron ammeter range can be done by using Inductor Multiplier Capacitor Shunt Inductor Multiplier Capacitor Shunt ANSWER DOWNLOAD EXAMIANS APP
SSC JE Electrical 2019 with solution SET-1 In the two wattmeter method, the readings of the two wattmeters are 500W, 500W respectively. The load power factor in a balanced 3-phase 3-wire circuit is: 0.8 1 0.9 0.5 0.8 1 0.9 0.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In two wattmeter method the phase angle is tanφ = √3(W1 − W2)/(W1 + W2) tanφ = √3(500 − 500)/(500 + 500) tanφ = 0° φ = tan−10° = 0° Power factor = cosφ PF = cos0° = 1
SSC JE Electrical 2019 with solution SET-1 In an AC network, the load connected is (10 + j10). The phase relation between the voltage applied and the current through the load is: Voltage and current are in phase with each other Voltage leads current by 45° Voltage lags current by 45° Voltage lags current by 30° Voltage and current are in phase with each other Voltage leads current by 45° Voltage lags current by 45° Voltage lags current by 30° ANSWER EXPLANATION DOWNLOAD EXAMIANS APP L0ad impedance Z = R + jXz = 10 + 10jPhase angle θ= tan−1(IL/IR)θ= tan−1(10/10)tanθ = 1tanθ =45°
SSC JE Electrical 2019 with solution SET-1 Two inductors of 4H and 6H are connected in series. The equivalent inductance of this combination is 2.4 H 10 H 4 H 6 H 2.4 H 10 H 4 H 6 H ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Total inductance when inductor are connected in seriesL = L1 + L2L = 4 + 6 =10H
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? 115 ohm 29 ohm 290 ohm 11.5 ohm 115 ohm 29 ohm 290 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 ________ is used to manufacture stay wire, earth wire, and structural components Hard drawn copper Nichrome Galvanized steel Cadmium copper Hard drawn copper Nichrome Galvanized steel Cadmium copper ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Galvanized steel conductors do not corrode, and possess high resistance. Hence such Wires are used in telecommunications circuits, earth wires, guard wire, stray wire, etc.