ECAT Physics MCQS Alternating Current Online Test 3

metal-detector-consists-of-3-a_-_l-c-circuit,one-of-the-sources-of-an-a-c-voltage-is-3-a_-_solar-cell,phase-difference-between-v-and-i-of-an-a-c-through-resistor-is-3-a_-_zero-degree,power-dissipated-in-a-pure-inductor-is-3-a_-_zero,relation-for-resonance-frequency-is-3-a_-_f-3-csub-3-er-3-c-2-fsub-3-e-3-d-1-2-f-2-3-f-e-2-88-9-alc,relation-for-resonance-frequency-of-rlc-series-circuit-is-3-a_-_1-2-f-2-3-f-e-2-88-9-alc,resistance-of-choke-is-3-a_-_very-small,root-mean-square-value-of-voltage-is-given-by-3-a_-_v-3-csub-3-erms-3-c-2-fsub-3-e-3-d-v-3-csub-3-eo-3-c-2-fsub-3-e-2-f-e-2-88-9-a-2,the-aptitude-modulated-transmission-waves-have-frequencies-range_-_540-khz-to-1600-khz,the-basic-circuit-element-in-a-c-circuit-which-controls-current-3-a_-_all-of-these,the-basic-circuit-element-in-a-d-c-circuit-which-controlled-the-current-and-voltage-is-3-a_-_resistor,the-basic-circuit-elements-in-a-d-c-circuits-is-3-a_-_resistor,the-circuit-which-compares-the-two-voltages-is-3-a_-_sensor,the-combined-effect-of-resistance-and-reactance-is-knows-as-3-a_-_impedance,the-device-which-allows-only-the-continuous-flow-of-ac-through-it-is-3-a_-_capacitor,the-expression-p-3-d-vi-holds-only-when-current-and-voltage-are-3-a_-_in-phase,the-flow-of-d-c-current-is-opposed-by-3-a_-_capacitor,the-frequency-of-a-c-sources-used-in-pakistan-is-3-a_-_50-hz,the-highest-value-reached-by-the-voltage-or-current-in-one-cycle-is-called-3-a_-_peak-value,the-impedance-of-rlc-series-circuit-at-resonance-is-given-by-3-a_-_z-3-d-3-fr-3-csup-3-e-2-3-c-2-fsup-3-e-2-bx-3-csup-3-e-2-3-c-2-fsup-3-e-3-csub-3-ec-3-c-2-fsub-3-e,xl-is-low-for-low-frequency-f-2-c-but-xc-is-3-a_-_high