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. σ/ω ε. ω ε/σ. σ ω ε. ω σ/ε. σ/ω ε. ω ε/σ. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A balanced delta connected load has an impedance of 9∠30o Ω per phase. What is the impedance per phase of its equivalent star? 3∠30o Ω. 27∠30o Ω None of these 30∠30o Ω. 3∠30o Ω. 27∠30o Ω None of these 30∠30o Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Flux in a magnetic circuit can be compared in an electric circuit to current. resistance. inductance. voltage. current. resistance. inductance. voltage. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits At which of the following frequency voltage across capacitor has maximum value for series circuit ? Greater than resonance frequency Less than resonance frequency Equal to resonance frequency Zero frequency Greater than resonance frequency Less than resonance frequency Equal to resonance frequency Zero frequency ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits For closer tolerance which of the following capacitors is usually preferred? Ceramic disc capacitor. Paper capacitor. None of them. Mica capacitor. Ceramic disc capacitor. Paper capacitor. None of them. Mica capacitor. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The mass of the atom is determined by neutron and proton. proton. electron and proton. electrons. neutron and proton. proton. electron and proton. electrons. ANSWER DOWNLOAD EXAMIANS APP
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