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 ω σ/ε. σ/ω ε. ω ε/σ. σ ω ε. ω σ/ε. σ/ω ε. ω ε/σ. σ ω ε. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In a capacitor, the electrical energy is stored in none of above. magnetic field. electric field. both ‘electric field’ and magnetic field’. none of above. magnetic field. electric field. both ‘electric field’ and magnetic field’. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits What is the value of charge of an electron? 1.6022 × 10-19 Coulomb 1.6022 × 10-7 Coulomb 1.6022 × 10-27 Coulomb 1.6022 × 10-8 Coulomb 1.6022 × 10-19 Coulomb 1.6022 × 10-7 Coulomb 1.6022 × 10-27 Coulomb 1.6022 × 10-8 Coulomb ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In RL series circuit R=2Ω and L=2mH. What is the value of time constant? 1msec 100sec 2msec 4msec 1msec 100sec 2msec 4msec 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 phase angle of current in respect of supply voltage will be 28.8o. 20.2o. 32.1o. 40.4o. 28.8o. 20.2o. 32.1o. 40.4o. 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 voltage drop across R is 30.6 V. 50.8 V. 40.8 V. 24.4 V . 30.6 V. 50.8 V. 40.8 V. 24.4 V . ANSWER DOWNLOAD EXAMIANS APP
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