# Is power a QT?

Electrical Energy: The Watt If voltage, (V) equals Joules per Coulombs (V = J/C) and Amperes (I) equals charge (coulombs) per second (A = Q/t), then we can define electrical power (P) as being the totality of these two quantities. This is because electrical power can also equal voltage times amperes, that is: P = V*I.

## Which is the most difficult chapter in class 10 science?

The most difficult chapter is Heredity and Evolution, but it also has the most weightage.

## What is Q Power chapter?

We define the electric potential difference between two points in an. electric circuit carrying some current as the work done to move a unit. charge from one point to the other – Potential difference (V) between two points = Work done (W)/Charge (Q)

## What is science for 10th class?

Science is a combination of theoretical and practical knowledge and can be one of the toughest subjects to understand. In the CBSE Class 10 Science, there are crucial topics such as electricity, magnetic effects of electric current, refraction of light, etc for this we provide you NCERT Solutions for Class 10 Science.

## What is reflection class 10 Ncert?

• Reflection of light is the phenomenon of bouncing back of light in the same medium on striking the surface of any object. • The two laws of reflection are: (i) the incident ray, the reflected ray and the normal (at the point of incidence), all lie in the same plane.

## How do you get a 95 in Science class 10?

Make completely labeled diagrams wherever possible as it is very important to get full marks in Science. For example, if you make the diagram of human eye, you need to label the diagram well like mentioning where is pupil, iris, cornea, retina, etc. It will help you get 95+ marks in science.

## Which class is very hard 9 or 10?

Yes, as a teacher I can close my eyes and say that Class 10 is much easier than Class 9. The same applies to Class 11 & Class 12 in which Class 12 will be much easier than Class 11. Generally, the difficulty level of Class 9 and Class 11 will be much higher than Class 10 and Class 12 respectively.

## What is electricity formula?

V = W / Q. E = Energy, W = Work done. Volts (V) Resistance R. R = ρl / A.

## What is P and Q in electricity?

P is the real power in watts [W] Q is the reactive power in volt-ampere-reactive [VAR]

## Can a weak student take science?

YES you can take science and learn as much you want.

## Can I take Pcmb after 10th?

PCMB could be a great choice for students in 10th who love both Mathematics and Biology equally. If you are certain you want to go into the Science field but are unsure whether you should go for Mathematics or Biology, you can go ahead and choose this combination.

## What are the 3 laws of reflection?

Solution : There are three laws of reflection
1. The angle of reflection is equal to the angle of incidence .
2. The incident ray, the reflected ray and the normal lie in the same plane.

## What is mirror formula?

The relation between focal length of mirror, distance of the object and distance of the image is known as mirror formula. It is given by. u1+v1=f1.

## What is 2 law of reflection?

Two laws of reflection are. (i) The angle of incidence is equal to the angle of reflection. (ii) Incident ray, reflected ray and the normal drawn at the point of incidence to the reflecting surface, lie in the same plane.

## Is a 90% Class 10 good?

Ans: A 90 % and above score is considered a good percentage in class 10th. Q.

## Is 94% good in class 10th?

Dude, that’s very good mark.

## Can you get 50% science?

You might find it hard to get admission in science stream in a good college or school because most of the schools don’t allow student with mass less than se 50% or 60% to get admission in the sizes stream however it is not an compulsion and you can expect an admission in the science stream in some schools kindly come …

## Which is the most hardest class?

1. Engineering. Considered one of the toughest courses in the world, engineering students are required to have tactical skills, analytical skills, critical thinking, and problem-solving abilities.
2. Chartered Accountancy.
3. Medicine.
4. Pharmacy.
5. Architecture.
6. Law.
7. Psychology.
8. Aeronautics.

## Which is the most difficult class?

• Engineering.
• Chartered Accountancy.
• Medicine.
• Pharmacy.
• Architecture.
• Law.
• Psychology.
• Statistics.

## Which is the hardest subject in 10th?

• Mathematics: It is one of the most challenging as well as one of the most scoring subjects.
• Science: Studying Science is challenging.
• Social Studies: Usually subjects of social studies are perceived boring by almost all students.

## What is the SI unit of energy?

The SI unit of energy is same as that of work, which is joule (J).

## What is the SI unit of power?

unit of power is watt (W). When a body does work at the rate of 1 joule per second, its power is 1 watt.

## What are the 3 forms of Ohm’s law?

3-4: A circle diagram to help in memorizing the Ohm’s Law formulas V = IR, I = V/R, and R= V/I.

• P = E t.
• P = W t.
• P = V 2 R.

## What is the unit of current?

The ampere, symbol A, is the SI unit of electric current.