A `12 V` battery connected ot a `6 Omega, 10 H `coil through a switch drives a constant current in the ciructit. The switch is suddenly opened. Assuming that it took 1 ms to open the swith, calculate the average emf induced across the coil.

(a) When the current in a coil changes from 8A to 2A in 3xx10^(-2)s , the emf induced in the coil is 2V . The self-induced of coil in mH (b) A 12V battery conneted to a 6Omega . 10H coil through a switch drives a constant current in the circuit. The switch is suddenly opened. Assuming that it took 1msec to open the switch, calculate the average emf induced across the coil. (c) The equivalent inductance of two inductored in series. What is the value of inductances of the individual inductors? (d) If i=5A and decreasing at a rate of 10^(3) (A/sec), find V_(B)-B_(A) .

A 10 V battery connected to 5omega resistance coil having inductance 10 H through a switch drives a constant current in the circuit. The switch is suddenly opened and the time taken to open it is 2ms. The average emf induced across the coil is

A coil of self-inductance 15 H is connected to a battery of 10 V through a 5 Omega resistor and a switch. The switch is suddenly opened in 2 ms. Calculate the average emf induced in the coil.

An inductor is connected to a battery through a switch. The emf induced in the inductor is much larger when the switch is opened as compared to the emf induced when the switch is closed. Is this statement true or false?

An inductor is connected to a battery through a switch. Explain why the emf induced in the inductor is much larger when the swithc is opened as compared to the emf induced when the switch is closed.

A 1 -k Omega resistor is connected in series with a 10-mH inductor, a 30 V battery and an open switch. At time t= 0 , the switch is suddenly closed. a. What is the maximum current in this circuit and when does it occur? b. What are the voltage drops across the inductor and across the resistor 20 mu s after the switch is closed? c. On a single set of axes, sketch the voltage across the resistor and the voltage across the inductor as functions of time. Also, sketch a graph of the current in the circuit as s function of time.

A 35.0 V battery with negligible internal resistance, a 50.0Omega resistor, and a 1.25 mH inductor with negligible resistance are all connected in series with an open switch. The switch is suddenly closed (a) How long after closing the switch will the current through the inductor reach one-half of its maximum value? (b) How long after closing the switch will the energy stored in the inductor reach one-half of its maximum value?

A source of constant voltage V is connected to a resistance R and two ideal inductor L_(1) and L_(2) through a switch S as shown. There is no mutual inducance between the two inductors. The swtich S is initially open. At t=0, the switch is closed and current begins to flow. Which of the following options is / are correct ?