AC Through a Resistor, Inductor and Capacitor

JEE Main Physics · Alternating Current · 9 questions, latest first

• An inductor stores 16 J of magnetic field energy and dissipates 32 W of thermal energy due to its resistance when an a.c. current…202628 January, Shift 2 · Q48
• A bulb and a capacitor are connected in series across an ac supply. A dielectric is then placed between the plates of the…20249 April, Shift 1 · Q43
• An alternating emf E=110 √2 sin 100 t volt is applied to a capacitor of 2 μ F, the rms value of current in the circuit is ____ mA.20248 April, Shift 2 · Q58
• A series LCR circuit is subjected to an ac signal of 200 V, 50 Hz. If the voltage across the inductor (L=10 mH) is 31.4 V, then…20245 April, Shift 2 · Q41
• In an ac circuit, the instantaneous current is zero, when the instantaneous voltage is maximum. In this case, the source may be…20244 April, Shift 1 · Q43
• An alternating voltage V(t)=220 sin 100 π t volt is applied to a purely resistive load of 50 Ω. The time taken for the current to…202430 January, Shift 2 · Q43
• As per the given graph, choose the correct representation for curve A and curve B. \{Where X_C= reactance of pure capacitive…202311 April, Shift 1 · Q36
• A capacitor of capacitance 150.0 μ F is connected to an alternating source of emf given by E=36 sin (120 π t) V. The maximum…20236 April, Shift 2 · Q47
• An alternating voltage source V=260 sin (628 t) is connected across a pure inductor of 5 mH. Inductive reactance in the circuit…202331 January, Shift 2 · Q1