Chapter 18 and 19 Problem Solving Questions Important Formula Ch- 19 1. 650Ω and 1800 Ω resistors are connected in series with a 12-V battery. What is the voltage across the 1800 Ω resistor? Ch- 19 1. Two 45 Ω light bulbs and one 65Ω light bulb are connected in series. a. What is the total resistance of the circuit? b. What is the total resistance if all light bulbs are wired in parallel? Chapter 19 What is the total resistance of three resistors, 100Ω, 10Ω , and 1Ω , in parallel? Chapter 19 What is the total current I flowing through a system with 2 resistors in parallel with resistances of 2Ω and 5Ω and a battery with voltage difference of 10V? Chapter 19 Calculate the total resistance between the points A and B. Chapter 19 Find current I in the circuit below and the current passing through each of the resistors in the circuit. Chapter 19 The circuit shown contains both series and parallel combinations of resistors.What is the total current in the circuit shown? Chapter 18 What is the resistance of a resistor if the current going through it is 2A and the voltage across it it is 10 V ? Chapter 18 What is the voltage across a resistor with a resistance of 10Ω that has a current of 20A going through it? Chapter 18 What is the current through a resistor if the resistor has a resistance of 40Ω and the voltage across the resistor is 60V? Chapter 18 What is the power of a circuit that contains a 20Ω resistor and 4 amps of current? Chapter 18 A 6V battery delivers 0.5A of current. What is the power rating of the circuit? Please check your Physics copy book notes. Questions similar to these have been solved in class. These are practice questions. If you have any doubts Please send an email with the picture of your solved question. All the best !