Physics Tutor in Mohammed Bin Zayed City +91-9958461445

If you live in Mohammed Bin Zayed City Abu Dhabi and Physics is not clear to you, then you are on the right page. Many students study in good schools, but still they face difficulty in Physics. They attend classes, read notes, solve worksheets, but when numerical questions come, the answer does not come easily.

This happens because Physics needs concept clarity. If the basic idea is weak, then formulas look difficult. Whether you are preparing for CBSE, ICSE, IGCSE, IB, A-Level, AP Physics, NEET, IIT JEE Main or IIT JEE Advanced, you need a teacher who can explain every concept from zero level.

At Kumar Physics Classes, Kumar Sir teaches Physics in a simple, friendly and exam-oriented way. He explains theory, formula, derivation, diagram and numerical application step by step.

If you live in Mohammed Bin Zayed City and you are searching for a good online Physics tutor, you can contact Kumar Sir.

Why Physics Becomes Difficult for Students

Many students in Mohammed Bin Zayed City feel frustrated because:

• School teaching is too fast

• Concepts are not clear

• Numerical questions do not solve

• Formula application is confusing

• NEET and JEE level questions look difficult

• Students do not understand how to start a problem

• Test marks are not improving

Physics becomes easy only when the teacher explains the logic behind every formula.

Kumar Sir focuses on:

• Concept building

• Formula understanding

• Derivation clarity

• Numerical practice

• Doubt solving

• Regular revision

• Exam-based preparation

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Exam-Based Physics Tutor Links

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Magnetic Effect of Current

When electric current flows through a conductor, it produces a magnetic field around it. This is called the magnetic effect of current.

Important points:

• Current produces magnetic field.

• Direction of magnetic field is found by right-hand thumb rule.

• Magnetic field around a straight wire is circular.

• Magnetic field inside a solenoid is almost uniform.

• A moving charge in magnetic field experiences magnetic force.

Formula for magnetic force on a moving charge:

F = qvB sinθ

Where:

q = charge
v = velocity
B = magnetic field
θ = angle between velocity and magnetic field

If θ = 90°, then:

F = qvB

This force is always perpendicular to velocity and magnetic field.

Charged Particle Moving Perpendicular to Magnetic Field

When a charged particle enters a uniform magnetic field perpendicular to the field, it starts moving in a circular path.

Why?

Because magnetic force acts perpendicular to velocity. This force does not change speed, but it changes direction continuously. So the particle performs circular motion.

Magnetic force provides centripetal force.

qvB = mv²/r

Cancel v:

qB = mv/r

So:

r = mv/qB

This is the radius of circular path.

Time Period of Charged Particle

Time period:

T = 2πr/v

Put:

r = mv/qB

So:

T = 2π(mv/qB)/v

T = 2πm/qB

So:

T = 2πm/qB

Important point:

Time period does not depend on velocity.

Frequency of Circular Motion

Frequency:

f = 1/T

So:

f = qB/2πm

This is also called cyclotron frequency.

Meaning of q/m

The ratio q/m is called specific charge.

q/m = charge / mass

It tells how strongly a particle will respond to electric and magnetic fields.

If q/m is large, particle bends more.
If q/m is small, particle bends less.

For example:

Proton:

q = e
m = m

Alpha particle:

q = 2e
m = 4m

So:

(q/m) for alpha = 2e/4m = e/2m

That means alpha particle bends less than proton.

Kumar Sir Style Explanation

देखो बेटा, जब भी charged particle magnetic field में perpendicular जाता है, तो सबसे पहले यह लिखो:

F = qvB

और circular motion के लिए:

Centripetal force = mv²/r

अब दोनों बराबर करो:

qvB = mv²/r

तो:

r = mv/qB

बस यही पूरा game है.

अगर question में proton दिया है:

q = e
m = m

अगर alpha particle दिया है:

q = 2e
m = 4m

अगर deuteron दिया है:

q = e
m = 2m

Question देखते ही पहले charge और mass लिखो. Half numerical वहीं solve हो जाएगा.

Important Formula Summary

Magnetic force:

F = qvB sinθ

For perpendicular motion:

F = qvB

Radius:

r = mv/qB

Time period:

T = 2πm/qB

Frequency:

f = qB/2πm

Angular frequency:

ω = qB/m

Specific charge:

q/m

Why Kumar Physics Classes?

Kumar Sir teaches Physics with complete clarity. Students do not only learn formulas; they learn how to apply formulas in exams.

At Kumar Physics Classes, students get:

• One-to-one online Physics classes

• Concept-based teaching

• Numerical solving practice

• NEET and JEE level preparation

• CBSE board exam support

• IB, IGCSE, A-Level and AP Physics help

• Regular doubt clearing

• Simple explanation in Kumar Sir style

If you are living in Mohammed Bin Zayed City and Physics is becoming difficult, you can join online classes with Kumar Sir from India.

Contact Kumar Physics Classes

Kumar Physics Classes
Phone / WhatsApp: +91-9958461445
Email: kumarsirphysics@gmail.com
Website: kumarphysicsclasses.com

If you live in Mohammed Bin Zayed City Abu Dhabi and want a good Physics tutor, contact Kumar Sir and start learning Physics with proper concepts, formulas and numerical practice.