Electric Circuits The resistivity of semi-conductors at room temperatures is 0.01 to 50 ohm - cm. 1000 to 1500 ohm - cm. 1.6 × 106 to 100 × 106 ohm - cm. 109 to 1012 ohm - cm. 0.01 to 50 ohm - cm. 1000 to 1500 ohm - cm. 1.6 × 106 to 100 × 106 ohm - cm. 109 to 1012 ohm - cm. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A battery of E Volts is supplying a steady current to a series circuit of total resistance RΩ and inductance L Henry. A part R1 of the total resistance is suddenly short circuited. Find the expression for current flowing through the battery subsequent to the operation. i = {E / R1 - R)}(1- e - (R1 - R) t / L) None of these i = {E / R}[1-(R1 / R) *e - {(R - R1 )*t/L} i = {E / (R - R1)}[1-(R1 / R) *e- {(R - R1 )t/L} i = {E / R1 - R)}(1- e - (R1 - R) t / L) None of these i = {E / R}[1-(R1 / R) *e - {(R - R1 )*t/L} i = {E / (R - R1)}[1-(R1 / R) *e- {(R - R1 )t/L} ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A balanced 3 - φ star connected load is fed from a 208 V, 3 - φ supply. Each load has resistance of 35 Ω. The total power is 1236 W. 411.3 W. none of these. 618 W. 1236 W. 411.3 W. none of these. 618 W. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits When the internal resistance of a cell is large compared to the external resistance in the circuit then high current can flow through the external resistance by grouping the cells in either series or parallel. mixed. in parallel. as in series. in either series or parallel. mixed. in parallel. as in series. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Electrics supply for electroplating should be low frequency ac voltage. DC voltage. low AC voltage. any of above. low frequency ac voltage. DC voltage. low AC voltage. any of above. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Air gap flux density is of the order of 0.65 - 0.9 T. 0.85 - 0.9 T. 0.35 - 0.5 T. 0.75 - 0.8 T. 0.65 - 0.9 T. 0.85 - 0.9 T. 0.35 - 0.5 T. 0.75 - 0.8 T. ANSWER DOWNLOAD EXAMIANS APP
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