कारण बताइए :- निष्कर्षण प्रक्रम में कार्बोनेट एवं सल्फाइट अयस्क को ऑक्साइड में परिवर्तित किया जाता है। Give reasons :- Carbonate and sulphite ores are converted into oxides in the extraction process.

Explain the two effects of electric current along with their principles and uses.

Describe domestic household circuit.

What are the patterns of magnetic field lines inside and outside of a solenoid?

What is magnetic field?

Why does electric current show heating effect?

Why are fuse wire not used in circuit containing electric cell?

Why does electric current show magnetic effect?

State the factors on which amount of heat produced depends?

What are filaments of a bulb and a heater made up of?

Write short notes on magnetic effects of electric current

Distinguish between an electric motor and generator?

Write short notes on heating effects of electric current.

When the current is switched on through a wire, a compass needle kept nearby gets deflected from its north-south position. Explain.

Can we use an electromagnet separating plastic bags from a garbage heap? Explain.

An electrician is carrying out some repairs in a building. He wants to replace a fuse by a piece of wire. Would you agree with the electrician? Give reasons for your response.

Explain the function of cell in a circuit.

Explain the formation and uses of battery.

Differentiate between electric current and electric circuit.

बहुव्रीहि समास किसे कहते हैं? What is Attributive Compound

द्वंद समास किसे कहते हैं? What is Copulative Compound

द्विगु समास किसे कहते हैं? What is Numeral Compound

कर्मधारय समास किसे कहते हैं? What is Appositional Compound

तत्पुरुष समास किसे कहते हैं? What is Determinative Compoun

अव्ययीभाव समास किसे कहते हैं? What is Adverbial Compound

समास किसे कहते हैं? इनके कितने भेद है ? Samas kise kahate hain.

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भविष्यत काल (Future Tense) किसे कहते हैं? What is Future Tense?

वर्तमान काल (present tense) किसे कहते हैं? What is present tense?

भूत काल (Past Tense) किसे कहते हैं? What is Past Tense?

काल (Tense) किसे कहते हैं ? What is Tense

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How do I get through to Alitalia?

How do I get a hold of Iberia?

How do you get through to Southwest Airlines?

नागरिको के मौलिक कर्तव्य क्या है? What are the fundamental duties of citizens?

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कारक किसे कहते है? कारक के कितने भेद होते हैं? What is the factor? How many different factors are there?

वचन किसे कहते है? हिंदी व्याकरण के अनुशार वचन के कितने भेद होते हैं? What is Number? How many Number differences are there according to Hindi grammar?

लिंग किसे कहते है? हिंदी व्याकरण के अनुशार लिंग के कितने भेद होते हैं? What is gender? How many gender differences are there according to Hindi grammar?

विस्मयादिबोधक अव्यय किसे कहते है? विस्मयादिबोधक अव्यय कितने प्रकार के होते हैं? What is exclamatory clause? How many types of exclamatory clause?

सम्बन्ध बोधक अव्यय किसे कहते है? सम्बन्ध बोधक अव्यय कितने प्रकार के होते हैं? What is relative clause? How many types of relative clause?

समुच्चय बोधक अव्यय किसे कहते है? समुच्चय बोधक अव्यय कितने प्रकार के होते हैं? What is conjunction clause? How many types of conjunction clause?

क्रिया विशेषण किसे कहते है? क्रिया विशेषण कितने प्रकार के होते हैं? What is Adverb? How many types of Adverb?

क्रिया किसे कहते है? क्रिया कितने प्रकार के होते हैं? What is Verb? How many types of Verb are there?

विशेषण किसे कहते है? विशेषण कितने प्रकार के होते हैं? What is adjective? How many types of adjectives are there?

सर्वनाम किसे कहते है? और इनके कितने भेद है ? Who is pronoun? And how many types are there?

संज्ञा किसे कहते है? और इनके कितने भेद है ? What is a noun?

अर्थ के आधार पर शब्दों के कितने भेद है ? How many different words are there on the basis of usage?

प्रयोग के आधार पर शब्दों के कितने भेद है ? How many different words are there on the basis of usage?

रचना के आधार पर शब्दों के कितने भेद है ? How many different words are there on the basis of composition