Explanation

(a) Mutual Induction: Mutual Induction is a phenomenon which occurs when the current in a coil is changing, an e.m.f will be induced in a tear-by circuit due to some of the magnetic flux produced by the first circuit linking the second circuit.

(b) The uses of electromagnets are in:

- electric bells or telephone earpieces

- generators or electric motors

- industrial robots

- separation of iron scraps from debris

- electromagnetic switches or magnetic relays

- cranes fbr lifting or transporting heavy magnetic materials

- magnetic resonance scanners, i.e. in medical diagnosis.

(i) The changing magnetic flux in X induces changing magnetic flux in Y which induces the current that light up the bulb.

(ii) As the distance between X and Y decreases, the magnetic flux density linking coil Y increases, hence the induced e.m.f. increase hence the brightners of the lamp.

(iii) The insulated soft iron wires increases the magnetic flux through coil Y, hence increase in the induced current in Y, therefore, the filament of the lamp glows brighter.

(d)

Total e,m,f. E = 2V

Total internal resistance r

\(\frac{1}{r} + \frac{1}{r_2} = \frac{1}{0.4} + \frac{1}{0.1}\)

e = 0.08\(\Omega\)

E = I(R + r)

2 = I(5 + 0.08)

I = \(\frac{2}{5.08}\) = 0.394A

Correct Answer: A. a bounced cheque

Correct Answer: D. raw materials

Explanation

A plywood firm would be located near the source of its raw materials to ensure easy access to the materials, before selling to its target.

Correct Answer: C. central government

Correct Answer: A. unitary government

Correct Answer: B) locomotion

Explanation

Paramecium is a type of single-celled organism that uses hair-like structures called cilia for various functions. The cilia in paramecium are used for movement, which is also known as locomotion. They help the organism to swim and move around in its aquatic environment. The other options listed in the question are incorrect. Paramecium does not use cilia for respiration, protection, regulating food intake or excretion. However, it is worth noting that paramecium has other organelles that perform these functions. For example, it has a contractile vacuole that helps with excretion. In conclusion, the correct answer to this Biology question is option B: locomotion. The cilia in paramecium help the organism to move around in its environment.

Explanation

Imam Muslim was gifted with great intelligence and a sharp memory. First of all, he studied Arabic literature and other sciences taught in his times. Later on he developed a keen interest in the study of hadith. He began by learning hadith from the great scholars, including Imam Bukhari, who were at that time in Nishapur. This town, situated in a central place enjoyed great prestige at that time. Afterwards, he undertook long journeys to collect traditions from other scholars of repute. He went to most of the important centres of learning in Persia, Mesopotamia, Syria and Egypt, where he attended the lectures of most of the important traditionists of his time, including Ishaq ibn Rahwayh and Imam Ahmad ibn Hambal.

After finishing his studies, he came back to Nishapur and devoted his life to the service of hadith. He died in 261/874 on account of having consumed too many dates. One day he was so engrossed in investigating a particular hadith, that he just did not notice that he had eaten all the dates in the container one by one. Consequently, he took ill and died in 874.

Imam Muslim was of an excellent character—honest, truthful and peace-loving. He wrote many books and treatises on hadith, and other related subjects. The most important of his works is hisSahih. Some scholars have regarded it as the best work on the subject. Imam Muslim examined 300,000 traditions before the completion of this book. Out of his large collection he included only 4000 traditions. One great feature of his book is that he selected only those traditions which were free of all defects and were unanimously accepted by the great hadith scholars.

Imam Muslim strictly observed the principles of the science of hadith. He was even stricter than Imam Bukhari in pointing out the differences between the accounts of various narrators, their character and other details. He shows greater ability in the arrangement of traditions.

Moreover, he wrote a long introduction to his book explaining the principles followed by him as regards the choice of the material for his book.

Thanks to the utmost care having been taken in its completion, theSahih of Imam Muslim has been acknowledged as one of the most authentic collections of traditions after that ofSahih al Bukhari. So far as the beauty of its arrangement is concerned, it is held superior toSahih al Bukhari. Although some scholars, including Imam Nasai, held theSahih of Al Muslim superior to that of al Bukhari, the majority of the scholars have held the latter superior, the main reason being that when Imam Bukhari started working, he had no example before him for such a project. His contribution is very great by the virtue of fact that he managed to save all the authentic traditions by collecting them so painstakingly. On the contrary, Imam Muslim hadSahih al Bukhari as an example. He had every opportunity to learn from both its salient features as well as its defects. Imam Muslim himself recognized the superiority of his predecessor.

TheSahih of Imam Muslim is regarded as next to Al Bukhari in accuracy and authenticity. Any tradition which is accepted by both Al-Bukhari and Muslim has been termed as ‘agreed upon’. And these ‘agreed upon’ traditions are considered to be the most reliable.

Imam Muslim has added to his work an introduction to the science of tradition. His work consists of 52 chapters dealing with the common subjects of hadith, such as the five pillars of Islam, marriage, the laws of heredity, war, sacrifice, manners and customs, etc. The book closes with a short chapter on the tafsir (exegesis) of the Quran. The longest chapter, the opening chapter of Sahih Muslim is on Iman.

Correct Answer: B. elitist party

Correct Answer: C. Atlantic ocean

Correct Answer: B. trade association