Electric Circuits Which of following materials has the least resistivity ? Zinc. Mercury. Lead. Copper. Zinc. Mercury. Lead. Copper. 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 - R1)}[1-(R1 / R) *e- {(R - R1 )t/L} i = {E / R}[1-(R1 / R) *e - {(R - R1 )*t/L} i = {E / R1 - R)}(1- e - (R1 - R) t / L) None of these i = {E / (R - R1)}[1-(R1 / R) *e- {(R - R1 )t/L} i = {E / R}[1-(R1 / R) *e - {(R - R1 )*t/L} ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A series circuit consists of R = 20 Ω, L = 20 mH, and AC supply 60 V with f = 100 Hz. The current in R is 5.08 A. 2.54 A. 1.27 A. 10.16 A. 5.08 A. 2.54 A. 1.27 A. 10.16 A. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In a lead acid cell PbSO4 formed during both during charging as well as discharging. neither during charging nor discharging. discharging only. charging only. both during charging as well as discharging. neither during charging nor discharging. discharging only. charging only. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The rms value of sine wave is 100 A. Its peak value is 150 A. 282.8 A. 70.7 A. 141.4 A. 150 A. 282.8 A. 70.7 A. 141.4 A. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits An ideal constant voltage source has _______________ internal impedance whereas a constant current source has ____________ internal impedance. zero, zero infinite, zero zero, infinite infinite, infinite zero, zero infinite, zero zero, infinite infinite, infinite ANSWER DOWNLOAD EXAMIANS APP
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