Electric Circuits The hot resistance of a tungsten lamp is about 10 times the cold resistance. Accordingly, cold resistance of a 100 W, 200 V lamp will be 800 Ω. 4 Ω. 400 Ω. 40 Ω. 800 Ω. 4 Ω. 400 Ω. 40 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Unit step function is first derivative of impulse function. parabolic function. ramp function. gate function. impulse function. parabolic function. ramp function. gate function. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Electric flux is proportional to rate of change of current. potential difference between electrodes. resistivity of medium. rate of change of potential difference. rate of change of current. potential difference between electrodes. resistivity of medium. rate of change of potential difference. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Consider the following circuit : Switch is closed at t = 0 Find i(0 +) V / {R + (sL + 1 / Cs)}. (V*L) / (R*C) 0. V/R. V / {R + (sL + 1 / Cs)}. (V*L) / (R*C) 0. V/R. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which of the following is not equivalent to watts? Amperes/volt. Ampere-volts. Joules per second. Ampere2 – Ohm. Amperes/volt. Ampere-volts. Joules per second. Ampere2 – Ohm. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The common voltage across parallel branches with different voltage sources can be determined by the relation V = (V1 / R1 + V2 / R2 + V3 / R3) / (1 / R1 + 1 / R2 +1 / R3 .....) The statement is associated with which theorem? Norton’s theorem. Superposition theorem. Millman’s theorem. Thevenin’s theorem. Norton’s theorem. Superposition theorem. Millman’s theorem. Thevenin’s theorem. ANSWER DOWNLOAD EXAMIANS APP
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