CBSE Class 12 - Physics - Alternative Current - Important Theory Questions (#cbsenotes)(#eduvictors)

Alternative Current

(Important Theory Questions)

1. Describe the principle construction and working of an AC generator. Draw neat labeled diagram

2. Define mean value of AC(over a half cycle) and derive an expression for it.

3. Define RMS value of AC and derive an expression for it. ()

4. Show that the average value of AC over a complete cycle is zero.

5. Show that the current and voltage are in phase in an ac circuit containing resistance only.

Vocabulary - 10 The Most Confusing Words (#cbsenotes)(#eduvictors)

Vocabulary - 10 The Most Confusing Words

① Ability, Capacity

Ability refers to the power to do something.
e.g. Citrus foods are said to have the ability to prevent colds.

Capacity refers to the ability to hold or contain something.
e,g. This hall has a capacity of 5,000 seats.


② About, Approximately, Around

About refers to a rough estimate. Commonly used in face to face speech.
e.g.  We waited about 30 minutes for the bus.

Approximately refers to near accuracy.
e.g.  This school enrolls approximately 4,000 students.

Around refers to a physical proximity or surrounding.
e.g.  We’ll look for you around the front of the building.

CBSE Class 8 - Chapter 3: Understanding Quadrilaterals (MCQs) (#cbsenotes)(#eduvictors)

Understanding Quadrilaterals (MCQs)

1. A simple closed curve made up of only _____________ is called a polygon .

(a) curves
(b) line segments
(c) lines
(d) closed curves


2. A polygon with minimum number of sides is

(a) Pentagon
(b) Square
(c) triangle
(d) angle


3. Polygons that have no portions of their diagonals in their exteriors are called

(a) Squares
(b) triangles
(c) convex
(d) concave


4. Polygons that have any portions of their diagonals in their exteriors are called

(a) Squares
(b) triangles
(c) convex
(d) concave

CBSE Class 12 - Physics - Electromagnetic Induction (EMI) - Important Theory Questions (#cbsenotes)(#eduvictors)

Electromagnetic Induction (EMI)

(Theoretical Questions Assignment)

1. State and Explain Faraday's laws of electromagnetic induction.()

2. State Lenz' Law and show that it is in accordance with the law of conservation of energy.

3. Use Lenz' law to find the direction of induced emf in a coil when
(a) a north pole is brought towards the coil
(b) north pole taken away from the coil
(c) A south pole isbrought towards the coil and
(d) a south pole is taken away from the coil,
Draw illustrations in each case.

CBSE Class 9 Chemistry - Matter in our surroundings - Unit Test Paper (#cbsenotes)(#eduvictors)

Matter In Our Surroundings

(Unit Test Paper)

Matter in our surroundings 

Unit Test Paper

1. What is the physical nature of  matter? 

2. What are the characteristics of particles of matter? 

3. Why do the particles  mix faster in gases than in solids or liquids? 

4. Why can you smell an incense stick in the whole room even if it is lit at one place? 

5. Comment on the properties of matter in tabulated form keeping in mind the rigidity,  compressibility, kinetic energy,  fluidity and density.

CBSE Class 9 - Lines and Angles - Brain Teaser (#cbsenotes)(#eduvictors)

Lines and Angles - Brain Teaser

Q: What is the measure of ∠A + ∠B + ∠C + ∠D + ∠E  in the figure given below, assuming no angles and sides are equal. Give reason to your answer.

Answer:

CBSE Class 12 - Physics - Magnetic Effect of Current - Important Theory Questions (#cbsenotes)(#eduvictors)

Magnetic Effect of Current 

(Theoretical Questions)

1. State Biot- Savart law and apply it to find the magnetic field due to a circular loop carrying current at a point (a) at its centre (b) on the axis


2. State Ampere's circuital law and apply it to find the magnetic field (a) inside a current carrying solenoid (b) inside a current carrying toroid.


3. Apply Ampere's circuital law to determine the magnetic field at a point due to a long straight current carrying conductor.


4. Derive an expression for the force on a current carrying conductor in a uniform magnetic field

CBSE Class 8/910 - English Grammar - Prepositions (Worksheet) (#cbsenotes)(#englishgrammar)(#eduvictors)

English Grammar - Prepositions Worksheet

Fill the blanks with the correct prepositions:

1. He is interested _______ (on/at/in) learning karate.

2. I will pick you up _______ (on/at/in) 8 a.m. on Monday.

3. I am going to lose at least 5 kgs _______ (on/at/in) one month.

4. I have a doctor’s appointment _______ (in/on/at) Saturday.

5. Could you get me this shirt _______ (on/at/in) a smaller size?

CBSE Class 12 - Physics - Current Electricity - Important Theory Questions (#cbsenotes)(#eduvictors)

Current Electricity 

Important Theory Questions

1. Define drift velocity and derive an expression for it.


2. Derive the expression I=nAev_d


3. Deduce Ohm's law from elementary ideas and hence write an expression for resistance and resistivity.


4. Derive an expression for conductivity in terms of mobility

CBSE Class 12 / BBA Entrance - Economics - Banking - Important Banking Concepts (#cbsenotes) (#eduvictors)

Banking - Important Banking Concepts

Q1: What is Balance of Trade?

Answer: The value of a country’s exports minus the value of its imports. Unless specified as the balance of merchandise trade, it normally incorporates trade in services, including earnings (interest, dividends, etc.) on financial assets.


Q2: What is Balance of Payments?

Answer: A list of all of a country’s international transactions for a given time period, usually one year. Payments into the country (receipts) are entered as positive numbers, called credits; Payments out of the country (payments) are entered as negative numbers called debits. A single numbers summarize all of a country’s international transactions: the balance of payments surplus.


Q3: What is NOSTRO Account?

Answer: A Nostro account is maintained by an Indian Bank in the foreign countries.


Q4: What is VOSTRO Account?

Answer: A Vostro account is maintained by a foreign bank in India with their corresponding bank.


Q5: What is BCBS?

Answer: Basel Committee on Banking Supervision is an institution created by the Central Bank governors of the Group of Ten nations.