Free NEET Mock Tests for Magnetic Effects Of Current And Magnetism
Magnetize your NEET Exam Physics prep with free chapter-wise NEET mock tests for Moving Charge and Magnetism at Onlineneetcoaching.in! Master Biot-Savart law, Ampere’s law, and galvanometer with India’s largest collection of free NEET mock tests—1500+ tests, unmatched online. NCERT-aligned, no signups—start now!
NEET Exam Moving Charge and Magnetism Syllabus: Your Magnetic Edge
Moving Charge and Magnetism is a pivotal Physics chapter in NEET Exam, contributing 1-2 questions (4-8 marks) to the 180-question exam. This NCERT Class 12 chapter explores magnetic fields from currents, forces, and galvanometer applications, crucial for mastering Electromagnetism. The Exam syllabus excludes the magnetic field concept, Oersted’s experiment, toroidal solenoid, and cyclotron, focusing on core topics like Biot-Savart and Ampere’s laws. Onlineneetcoaching.in’s free chapter-wise NEET mock tests, drawn from our 25,000+ question bank, align perfectly with NEET Exam. Below is the updated syllabus to guide your preparation.
- Biot-Savart Law: Study magnetic field due to current (\( d\vec{B} = \frac{\mu_0 I d\vec{l} \times \hat{r}}{4\pi r^2} \)), applied to circular loops.
- Ampere’s Law: Apply \( \oint \vec{B} \cdot d\vec{l} = \mu_0 I_{\text{enc}} \) for infinite wires and solenoids.
- Force on a Moving Charge: Calculate force in magnetic (\( \vec{F} = q (\vec{v} \times \vec{B}) \)) and electric fields.
- Force on a Current-Carrying Conductor: Use \( \vec{F} = I (\vec{l} \times \vec{B}) \) in uniform magnetic fields.
- Force Between Parallel Current-Carrying Conductors: Compute force per unit length (\( \frac{F}{l} = \frac{\mu_0 I_1 I_2}{2\pi d} \)), defining the ampere.
- Torque on a Current Loop: Calculate torque (\( \vec{\tau} = \vec{m} \times \vec{B} \)) in uniform magnetic fields.
- Moving Coil Galvanometer: Understand its principle, sensitivity, and conversion to ammeter (shunt) and voltmeter (series resistor).
Note: The NEET Exam syllabus for Moving Charge and Magnetism excludes the magnetic field concept, Oersted’s experiment, toroidal solenoid, and cyclotron. Our chapter-wise NEET mock tests focus on the updated syllabus for exam success!
Top Study Tips for Moving Charge and Magnetism in NEET Exam
Moving Charge and Magnetism offers 1-2 questions (4-8 marks) in NEET Exam, making it a concise but high-impact Physics chapter. Onlineneetcoaching.in’s free chapter-wise NEET mock tests, sourced from our 25,000+ question bank, tackle NEET-level challenges like Biot-Savart law and galvanometer conversions. These 8 tips will help you master this chapter and boost your score.
- Master Biot-Savart Law: Use \( d\vec{B} = \frac{\mu_0 I d\vec{l} \times \hat{r}}{4\pi r^2} \). For a circular loop, find \( B \) at center (\( B = \frac{\mu_0 I}{2R} \)). Example: A 5 A current in a 0.1 m radius loop gives \( B = 3.14 \times 10^{-5} \, \text{T} \). Our mock tests drill these calculations.
- Apply Ampere’s Law: Use \( \oint \vec{B} \cdot d\vec{l} = \mu_0 I_{\text{enc}} \). For an infinite wire, \( B = \frac{\mu_0 I}{2\pi r} \). Example: A 10 A wire at 0.2 m gives \( B = 10^{-5} \, \text{T} \). Practice with our MCQs.
- Understand Lorentz Force: Compute \( \vec{F} = q (\vec{v} \times \vec{B}) \). For a 2 μC charge at 10 m/s in 0.1 T (perpendicular), \( F = 2 \times 10^{-6} \times 10 \times 0.1 = 2 \times 10^{-6} \, \text{N} \). Our tests cover vector problems.
- Calculate Conductor Force: Use \( \vec{F} = I (\vec{l} \times \vec{B}) \). A 1 m wire with 5 A in 0.2 T (perpendicular) gives \( F = 5 \times 1 \times 0.2 = 1 \, \text{N} \). Our mock tests include such numericals.
- Learn Parallel Conductor Forces: Use \( \frac{F}{l} = \frac{\mu_0 I_1 I_2}{2\pi d} \). For two wires with 10 A, 1 m apart, \( F/l = 2 \times 10^{-7} \times 10 \times 10 / 1 = 2 \times 10^{-5} \, \text{N/m} \). Practice with our tests.
- Master Torque on Loops: Use \( \vec{\tau} = \vec{m} \times \vec{B} \), where \( \vec{m} = I \vec{A} \). For a 0.01 m² loop with 2 A in 0.5 T (perpendicular), \( \tau = 2 \times 0.01 \times 0.5 = 0.01 \, \text{N·m} \). Our mock tests build intuition.
- Study Galvanometer Conversions: Convert to ammeter with shunt (\( R_s = \frac{I_g R_g}{I - I_g} \)) or voltmeter (\( R = \frac{V}{I_g} - R_g \)). Example: For a 10 mA galvanometer (\( R_g = 100 \, \Omega \)) to measure 1 A, \( R_s = \frac{0.01 \times 100}{1 - 0.01} \approx 1.01 \, \Omega \). Our tests prepare you.
- Time Your Practice: NEET allows ~1 minute per question. Solve “Find \( B \) at loop center for 5 A, 0.1 m radius” (\( B = 3.14 \times 10^{-5} \, \text{T} \)) in under 60 seconds. Our mock tests build speed.
These tips, paired with Onlineneetcoaching.in’s free chapter-wise NEET mock tests, make Moving Charge and Magnetism a scoring opportunity. Practice consistently to shine in Physics!
Common Mistakes to Avoid in Moving Charge and Magnetism for NEET Exam
Avoiding common pitfalls in Moving Charge and Magnetism can save crucial marks in NEET Exam. Onlineneetcoaching.in’s free chapter-wise NEET mock tests help you identify and correct these errors. Here are 5 frequent mistakes and how to avoid them.
- Ignoring Vector Directions: In Biot-Savart law or Lorentz force, incorrect vector directions (e.g., \( \vec{v} \times \vec{B} \)) lead to wrong signs. Use the right-hand rule: for a current element, curl fingers along \( d\vec{l} \), thumb points to \( \vec{B} \). Practice vector problems in our mock tests.
- Misapplying Ampere’s Law: Students apply \( \oint \vec{B} \cdot d\vec{l} = \mu_0 I_{\text{enc}} \) without checking enclosed current. For a wire outside the Amperian loop, \( I_{\text{enc}} = 0 \). Always verify enclosed currents. Our MCQs reinforce this.
- Confusing Galvanometer Conversions: Mixing up shunt (low resistance for ammeter) and series resistor (high resistance for voltmeter) is common. Remember: shunt reduces current, series increases voltage range. Example: For a 1 mA galvanometer to 1 V, add \( R = \frac{1}{0.001} - R_g \). Our tests clarify conversions.
- Neglecting Units and Constants: Forgetting \( \mu_0 = 4\pi \times 10^{-7} \, \text{T·m/A} \) or unit conversions (e.g., mA to A) causes errors. Example: In \( B = \frac{\mu_0 I}{2\pi r} \), use SI units (A, m). Double-check units in our mock tests.
- Misinterpreting Torque Conditions: Students assume maximum torque (\( \tau = m B \)) without checking angle. Torque is \( \tau = m B \sin\theta \), zero when loop is parallel to \( \vec{B} \). Visualize loop orientation. Our mock tests include angle-based questions.
Correcting these mistakes with Onlineneetcoaching.in’s free chapter-wise NEET mock tests ensures precision in Moving Charge and Magnetism, maximizing your NEET Exam Physics score!
Moving Charge and Magnetism Mock Test FAQs
What’s in the NEET Exam Moving Charge and Magnetism syllabus?▶
Onlineneetcoaching.in’s free chapter-wise NEET mock tests cover Biot-Savart law, Ampere’s law, forces on charges/conductors, parallel conductor forces, torque, galvanometer, and conversions, per NCERT Class 12.
How many questions come from Moving Charge and Magnetism in NEET?▶
NEET Exam includes 1-2 questions (4-8 marks) from Moving Charge and Magnetism, testing Biot-Savart law and galvanometer. Our mock tests ensure you ace them!
What topics were dropped from Moving Charge and Magnetism for NEET Exam?▶
Magnetic field concept, Oersted’s experiment, toroidal solenoid, and cyclotron were dropped. Our mock tests align with the updated syllabus.
What is Biot-Savart law in NEET?▶
Biot-Savart law (\( d\vec{B} = \frac{\mu_0 I d\vec{l} \times \hat{r}}{4\pi r^2} \)) gives magnetic field from currents. Practice with our mock tests!
How does Ampere’s law work in NEET?▶
Ampere’s law (\( \oint \vec{B} \cdot d\vec{l} = \mu_0 I_{\text{enc}} \)) finds fields for wires, solenoids. Our mock tests cover applications!
What’s the force on a moving charge?▶
Force is \( \vec{F} = q (\vec{v} \times \vec{B}) \) in magnetic fields. NEET tests these. Our mock tests clarify them!
How do parallel conductors interact?▶
Force per unit length is \( \frac{F}{l} = \frac{\mu_0 I_1 I_2}{2\pi d} \), defining ampere. Practice with our mock tests!
What’s torque on a current loop?▶
Torque is \( \vec{\tau} = \vec{m} \times \vec{B} \). NEET may ask, “Calculate torque.” Our mock tests prepare you!
How does a galvanometer work in NEET?▶
A galvanometer measures current, converts to ammeter (shunt) or voltmeter (resistor). Our mock tests cover conversions!
Why choose Onlineneetcoaching.in’s Moving Charge and Magnetism mock tests?▶
Our free chapter-wise NEET mock tests for Moving Charge and Magnetism, from India’s largest collection of free NEET mock tests—1500+ tests, unmatched online—match NEET’s difficulty, align with NCERT, and offer instant feedback. Practice anytime, no signup!