Question

1) An inductor of 45 mH that has a 2.6 mA current when connected to a circuit. There is a sinusoidal voltage of 12 V applied across the inductor. a) How much time does it take for this to happen? 2) When resistors are connected in series, the equivalence resistances will be closest to the value of: a) Smallest resistor value b) Middle resistor value c) Largest resistor value 3) An electro-magnetic wave of a moving charge will have an electric field and a magnetic field. In an electric circuit, the capacitor will store: a) magnetic field B b) electric field | E (E 4) An electro-magnetic wave of a moving charge will have an electric field and a magnetic field. In an electric circuit, the inductor will store: c) magnetic field B d) electric field | E (E)

Solve all questions please. Clear handwriting or typed

Answer 1

1 → The magnitude of induced emf across the Inductor is, E= L ܘ di dt = ? - = (0.45x1024) 2.3x10-A 12 V = 8.625x10 2 8.63x10-s * (or) 86.3 ns 2 → Conside three resistors R1 = 100, R = 29& R = 112, are connected in series their equivalent resistance is, Rg = R +R+R =1000+20+10 = 1032 SR So, Roq nearest to Largest resistance * → option (C)*is correct. 3 → In b/w the plates of a capacitor, an electric field(2) *is stores. 4 → An Inductor, in the circuit, Magnetic field(B) *is stores.