Show detailed solution. 21. The combined inductance of two coils connected in series is 0.6 H or 0.1 H depending on the relative directions of the currents in the coils. If one of the coils when isolated has a self inductance of 0.2 H, find the (a) mutual inductance (b) coefficient of coupling Answers: a. 0.125 H b. 0.72

Show detailed solution. 21. The combined inductance of two coils connected in series is 0.6 H or 0.1 H depending on the relative directions of the currents in the coils. If one of the coils when isolated has a self inductance of 0.2 H, find the (a) mutual inductance (b) coefficient of coupling Answers: a. 0.125 H b. 0.72

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter21: Resistive-capacitive Series Circuits

Section: Chapter Questions

Problem 6RQ: A 15-F AC capacitor is connected in series with a 50 resistor. The capacitor has a voltage rating...

See similar textbooks

Similar questions

A 15-F AC capacitor is connected in series with a 50 resistor. The capacitor has a voltage rating of 600 WVDC. The capacitor and resistor are connected to a 480-V, 60-Hz circuit. Is the voltage rating of the capacitor sufficient for this connection?
You find that a 25-F capacitor connected to 480 VAC is defective. The storeroom has no capacitors with a 480-VAC rating. However, you find two capacitors rated at 50 F and 370 VAC. Can these two capacitors be connected in such a manner that they can replace the defective capacitor? If yes, explain how they are connected and why the capacitors will not be damaged by the lower voltage rating. If no, explain why they cannot be used without damaging the capacitor.
1. Enumerate five formulas for five series connected inductances across Vt source and draw the circuit. 2. Enumerate five formulas for five parallel connected inductances across Vt source and draw the circuit.
Two coupled coils of self-inductances 0.6H and 0.16 H have a coefficient of coupling 0.8. Find their mutual inductance and turns ratio.
A coil of inductance 50 mH and resistance 5 ohm is connected to a 110V, d.c. supply. Determine the final value of current, the value of current after 4 ms, the value of the voltage across the resistor after 6 ms, the value of the voltage across the inductance after 6 ms, and the time when the current reaches 15A.
What is the unit of the product of inductance and capacitance? A. second B. square of second C. 1/second D. 1/second2
Identify which of the following statement is true, if two capacitances of the same value are present in the circuit, the equivalent capacitancecan be half the value of given capacitance. a. If the capacitances are connected in series. b. None of the given option c. It is not possible d. If the capacitances are connected in parallel.
What do you think will happen to the current if the frequency is adjusted higher in the pure inductance experiment? and what will happen to the current if the frequency is adjusted lower in pure inductance experiment? explain why please
Figure 2 shows three "LC" circuits, two of them with capacitors of capacitance "C" and the three with inductance coils "L", the three circuits are coupled by means of two capacitors "Cc" capacitors. inductance "L", the three circuits are coupled by means of two capacitors of capacitance "Cc". The currents circulating through each mesh are those indicated in the figure: "I1", "I2" and "I3". Using Kirchhoff's law for voltages and taking into account the definition of current I = -dQ/dt, find the system of coupled equations of the system and then find the angular normal frequencies of the system.
5. An alternating current bridge is arranged as follows: The arm BC and DA consists of non-inductive resistance of 800 Q each. A balance is obtained when resistances of the arms DE and CD of non-inductive variable resistances of 200 N, 1k n respectively. The arm EC of a capacitor of 1 µF capacitance. The alternating current source is connected to A and C and the telephone receiver to B and E. Calculate the resistance and inductance of arm AB. Also find Q factor, when supply frequency is 1500HZ.
R.) Two coils of inductances 4 H and 6 H are connected in parallel. If their mutual inductance is 3 H. Calculate the equivalent inductance of the combination if mutual inductance assists and if mutual inductance opposes the self-inductance respectively. a. 2.4 H & 1.4 H b. 3.75 H & 0.94 H c. 6.25 H & 2.75 H d. 16 H & 4 H
A resistance of 12 ohms and capacitance of 0.01 farad is connected in series with a 200 volts battery. Find the charge after 0.5 second and the current after 0.4 second