Electric Circuits The resistivity of semi-conductors at room temperatures is 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. 0.01 to 50 ohm - cm. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits When a lossy capacitor with a dielectric of permittivity ε and conductivity σ operates at a frequency ω the loss tangent for the capacitor is given by σ ω ε. σ/ω ε. ω σ/ε. ω ε/σ. σ ω ε. σ/ω ε. ω σ/ε. ω ε/σ. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Coating generally recommended for hard surfacing is None of these chromium plating. copper plating. lead plating. None of these chromium plating. copper plating. lead plating. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Condition of reciprocity in Y-parameter representation is Y12 = Y21. Y12 = Y22. Y11 = Y22. Y11 = Y12. Y12 = Y21. Y12 = Y22. Y11 = Y22. Y11 = Y12. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A external resistance R is connected to a cell of internal resistance r, then the current is maximum when R = r. None of these R > r. R < r. R = r. None of these R > r. R < r. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits If the practical units of voltage and current wave each made 20 times as large as they are at present, what would be the consequent alternation in the size of the unit of capacitance? Nil. 200 times. 20 times. 60 times. Nil. 200 times. 20 times. 60 times. ANSWER DOWNLOAD EXAMIANS APP
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