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. ω σ/ε. ω ε/σ. σ ω ε. σ/ω ε. ω σ/ε. ω ε/σ. σ ω ε. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Four capacitors each of 40 µF are connected in parallel, the equivalent capacitance of the system will be 5 µF 40 µF 160 µF 10 µF 5 µF 40 µF 160 µF 10 µF ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The capacitance of a parallel plate capacitor can be varied by All of these changing the overlapping area of the plates only. changing the dielectric medium only. changing the distance between the plates only. All of these changing the overlapping area of the plates only. changing the dielectric medium only. changing the distance between the plates only. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Our household apparatus are connected in cascade. series and parallel combination. series. parallel. cascade. series and parallel combination. series. parallel. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits For steady state current inductor acts as Short circuit Current source Open circuit Voltage source Short circuit Current source Open circuit Voltage source ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The resistivity of semi-conductors at room temperatures is 1.6 × 106 to 100 × 106 ohm - cm. 109 to 1012 ohm - cm. 1000 to 1500 ohm - cm. 0.01 to 50 ohm - cm. 1.6 × 106 to 100 × 106 ohm - cm. 109 to 1012 ohm - cm. 1000 to 1500 ohm - cm. 0.01 to 50 ohm - cm. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS