1. Chapter 11 Attributive Clause 11.1 Combination 11.1.1 Restrictive Attributive Clause Isotopes which give off rays are known as radio isotopes. Here we shall discuss only such factors as may cause distortions of the signal. The substance in which there are many free electrons is called a conductor.

2. 11.1.2 Non-restrictive Attributive Clauses The methods of differential calculus, which we shall start developing in this chapter, will enable us to solve problems involving these quantities. “Parallel” is used here to refer to two straight lines, the distance between which remains the same. Perhaps this is the “death ray”, which we often read about in science fiction. The factory has produced two kinds of chemicals, the quality of which is good.

3. 11.2 Division 11.2.1 Restrictive Attributive Clauses The problem has been how to harness the tremendous power which the earth receives from the sun. Ohm’s law can be written as V=IR where V represents voltage, I current and R resistance. During a fever there is an increase in metabolism that is usually proportional to the amount of fever.

4. An audio amplifier drives a loudspeaker which in turn produces sound waves. The lungs are subject to several diseases which are treatable by surgery.

5. 11.2.2 Non-restrictive Attributive Clauses The lightest element is hydrogen, the atom of which consists of a nucleus of only one proton, round which revolves only one electron. Some materials have a very high resistance, because of which they can be used as insulators to prevent the leakage of current The motion of a rocket does not depend on the presence of air, which was proved in 1916.

6. 11.3 Mixture There are some quantities that have direction as well as magnitude. There are occasions when it is necessary to use angles expressed to an accuracy greater than 0.1°. The nucleus contains a total positive charge that is equal to the number of protons present. A semiconductor is a material that is neither a good conductor nor a good insulator.

7. The major advantage of the use of a ring- counter controller is the simplicity with which it can be designed.

8. 11.4 Attributive Clauses Functioning as Adverbials The reverse current, which is small, can often be neglected. Matter has certain features or properties that enable us to recognize it easily. The melting point of steel the carbon content of which is lower is higher. The molecules of a body are separated by small spaces, within which they move rapidly about.

9. A pipe will be used through which the laser beam will be sent. Electronic computers, which have many advantages, cannot carry out creative work and replace man. The difference of these two signals is the ac error signal, which then is fed into the isolator amplifier.

10. Practice One method to increase the signal-to-noise ratio is to place more signal amplifiers on the line. Amplifiers strengthen the signal periodically as it travels down the communications path. Since noise is constant throughout the line, the location of the amplifiers must not be spaced too far apart to allow the signal power to fall below a certain level. However, while frequent spacing of amplifiers improves the S/N ratio, it can also be quite costly. Moreover, the amplifiers must be carefully designed to minimize the amount of noise that is amplified along with the signal.