Electromagnetic Induction | Old is Gold | XII 

Short Questions 1.      What is Lenz’s law? 2.      Mention two types of loss in a transformer. 3.      Show that Lenz’s law is an example of conservation of energy. 4.      Two closely would circular coils have the same number of turns, but one has twice the radius of the other. What is the ratio of self […]

Magnetic Properties of Materials | Old is Gold | XII 

Short Questions 1.      What are magnetic domains? 2.      What is angle of dip? How does it vary from the equator to the poles/ 3.      Define angle of dip and angle of declination at a place. 4.      How does dip vary from place to place on earth`s surface? 5.      Why does a bar magnet not retain […]

Magnetic effect of current | Old is Gold | XII 

Short Questions 1.      Under what conditions does a charge affect a magnet? 2.      State Ampere’s theorem 3.      Does a charged particle moving through a magnetic field experience a force? Express with conditions, maximum, and mini8mum force it experiences. 4.      A portion moving in a straight line enters a strong magnetic field along the field direction. […]

Chemical Effect Of Current | Old is Gold | XII 

Short Questions 1.      What is meant by Faraday’s Constant? 2.      What is the function of copper sulphate used in Daniel cell? 3.      Define one Faraday? 4.      Distinguish between ionic and electronic conduction. Long Questions 1.      State and explain Faraday’s law of electrolysis. Hence define Faraday’s Constant. 2.      State the Faraday’s laws of electrolysis and verify […]

Thermoelectric Effect | Old is Gold | XII 

Short Questions 1.      What do you mean by Peltier`s effect? 2.      What is thermoelectric emf? 3.      Why is Sb-Bi thermocouple preferred to Fe-Cu thermocouple? 4.      What are the factors on which the thermo emf produced in a thermocouple depends? 5.      How is Seebeck effect different from Pektier effect? Explain. 6.      How does thermo emf change […]

Electrical Circuits | Old is Gold | XII 

Short Questions 1.      State Kirchhoff`s laws of circuits. 2.      Why does voltmeter measures current more accurately than an ammeter? 3.      What is Wheatstone bridge? Obtain the balanced condition for the bridge? Explain how resistance can be measured by a meter bridge? Long Questions 1.      What is a Wheatstone bridge? Using Kirchhoff`s law, derive the principle of […]

DC Circuit | Old is Gold XII | 

Short Questions 1.      An ammeter is always connected in series. Why? 2.      Why do we use connecting wires made of copper? 3.      What are the factors on which the resistance of a conductor depends? 4.      Can the potential difference across a battery be greater than its emf? 5.      Two bulbs of 60 W and 100 […]

Youths announce more protests, college may be closed as well 

Seventeen youth and student associations affiliated to various political parties have announced further protest programmes include disrupting youth day celebration on Sunday, closing down educational institute with foreign names, stage rally against the government, picketing district administration offices across the country, among others. Seventeen youth and student associations affiliated to various political parties have announced […]

Mechanical Waves | Important Questions | 

1)      What do you mean by water waves? 2)      Why sound produced at a distance can be heard distinctly at night than in day time? 3)      Is velocity of sound more in damp air or in dry air? Explain. 4)     A boat at anchor is rocked by waves whose crest is 100 feet apart and whose […]

२६ गतेदेखि यातायात ठप्प पार्ने व्यवसायीको चेतावनी 

सुदिप पौडेल, श्रावण–२४,काठमाण्डौं । छुट्टै यातयात मन्त्रालय गठन , यातयात क्षेत्रलाई उद्योग सरह मान्यता दिनु पर्ने  भन्दै यातायात व्यवसायीहरुले साउन २६ गतेबाट सार्वजनिक यातायात पूर्णरुपमा ठप्प पार्ने सहितका आन्दोलनको घोषणा गरेका छन् । माग पूरा गर्न प्रधानमन्त्री डा. बाबुराम भट्टराईलाई संयुक्त ज्ञापन पत्र बुझाउने र ज्ञापन पत्र अनुसार मागहरु सम्बोधन नभए २६ गते बाट सवारी […]