JEE Advanced Alternating Current — practice questions
22 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice JEE Advanced Alternating Current in the app →The peak voltage of Indian household AC at rms $230$ V is approximately:An inductor of $0.1$ H is connected to a $50$ Hz AC source. Its inductive reactance is:In a series LCR circuit, resonance occurs at angular frequency:An ideal transformer with primary $1000$ turns and secondary $50$ turns is fed $230$ V AC. Secondary voltage iThe current driven by an alternating voltage in a circuit is called:The equivalent steady current giving the same average power loss is the:Phase relationships between voltage and current in an ac circuit are shown using:The quantity analogous to resistance for an inductor is called:The opposition offered by a capacitor to alternating current is called:What is the SI unit of inductive reactance?In a purely resistive ac circuit, the voltage and the current are:In a circuit containing an inductor, the current does what relative to the voltage?In a circuit containing a capacitor, the current does what relative to the voltage?At the resonant frequency of a series RLC circuit, the current amplitude is:A current that flows while no power is dissipated is sometimes called a:Why is ac voltage preferred over dc voltage for power distribution?If the secondary coil has more turns than the primary, the transformer is:The household line voltage of 220 V is quoted as which kind of value?What is the approximate peak voltage of a 220 V household supply?A well designed transformer may reach an efficiency of more than:Which transformer loss arises from currents induced in the iron core itself?Which transformer loss arises from repeatedly reversing the magnetisation of the core?