POTENTIAL DIFFERENCE ACROSS AN INDUCTOR

In the circuit shown in figure, E = 120 V, R_1 = 30.0Omega, R_2 = 50.0 Omega and L=0.200H . Switch S is closed at t = 0 . Just after the switch is closed. (a) What is the potential difference V_(ab) across the inductor R_1 ? (b) Which point, a or b , is at higher potential? (c) What is the potential difference V_(cd) across the inductor L ? (d) Which point, c or d , is at a higher potential? The switch is left closed for a long time and then is opened. Just after the switch is opened (e) What is the potential difference V_(ab) across the resistor R_1 ? (f) Which point a or b, is at a higher potential? (g) What is the potential difference V_(cd) across the inductor L ? (h) Which point, c or d , is at a higher potential?

An inductor of inductance 1 H is connected across an A C supply . The current in the circuit is a sinusoidal function of time with amplitude 0.5 A and frequency 50 Hz. Calculate the effective potential difference across the inductor .

In L-R circit, the A.C. source has voltage 220V . If potential difference across inductor is 176V , the potential difference across the resistor (in Volts) is Kxx33 . Find the value of K

A resistor and an inductor are conneted in sires to a 220 "volt" AC supply. When measured with an AC is 123 volts. Then the potential difference across the terminals of the inductor is

In figure i_(1) = 10 e^(-2t) A, i_(2) = 4 A, v_(C ) = 3 e^(-2t) V The potential difference across inductor V_(L) is :

The circuit shown in the figure is a series LCR circuit connected to an AC source. This circuit has many important applications in practical electronic systems. In the given circuit, L = 20 mH and frequency of applied alternating potential difference is omega = 8000 rad//s . Initial phase of applied potential difference has such a minimum value that initial value of instantaneous potential difference is half of is peak value while initial phase of current in the circuit has such a minimum value that initial value of instantaneous current equals its peak value. We also observe that current in the circuit leads the net voltage across the circuit. It is given that peak values of potential difference across R and L are I V_(R)( peak))= 25 V V(L)_(peak)= 20 V Instantaneous potential difference across the inductor can be expressed as

Two resistor are connected in series across a 5 V rms source of alternating potential. The potential difference across 6 Omega resistor is 3V. If R is replaced by a pure inductor L of such magnitude that current reamins same. Then the pontential difference across L is

Two resistors are connected in series across 5V rms source of alternating potentail. The potential difference across 6 Omega resistor is 3 V_(m) . If R is replaced by a pure inductor L of such magnitude that current remains same, then the potential difference across L is

An electrical heater and a capacitor are joined in series across a 220V, 50Hz, AC supply. The potential difference across the heater is 90V . The potential difference across the capacitor will be about:

An alternating e.m.f. of 100V (rms) is applied to a series LCR circuit. At resonance, the potential difference across the inductance and across the capacitance is 400V each. The potential difference across the resistance will be