NEET UG Magnetism, EMI & AC: Magnetism and Matter – Chapter Test
NEET UG Magnetism, EMI & AC: Magnetism and Matter – Chapter Test is an online chapter test in the NEET UG pattern, covering Magnetism, EMI & AC. Attempt it on SeatBeat with a timer like the real exam, then see a detailed solution for every question and your score and weak-topic analysis.
Topics in this test
| Topic | Questions |
|---|---|
| Magnetism, EMI & AC | 18 |
Difficulty: 4 medium · 14 hard
Magnetism and Matter MCQ questions with answers
The first 3 of 18 questions. Unlock the series for the rest, each with a solution.
Q1. What is the SI unit of magnetic dipole moment of a bar magnet?
एक छड़ चुंबक के चुंबकीय द्विध्रुव आघूर्ण का SI मात्रक क्या है?
- A. weber metre (Wb·m) / वेबर मीटर (Wb·m)
- B. tesla metre² (T·m²) / टेस्ला मीटर² (T·m²)
- C. ampere metre² (A·m²) / ऐम्पियर मीटर² (A·m²)
- D. ampere metre⁻¹ (A·m⁻¹) / ऐम्पियर मीटर⁻¹ (A·m⁻¹)
Solution
Magnetic dipole moment is defined as pole strength times magnetic length (or current times area), giving the SI unit ampere metre squared (A·m²), equivalent to J/T.
चुंबकीय द्विध्रुव आघूर्ण को ध्रुव सामर्थ्य और चुंबकीय लंबाई के गुणनफल (या धारा और क्षेत्रफल के गुणनफल) के रूप में परिभाषित किया जाता है, जिसका SI मात्रक ऐम्पियर मीटर वर्ग (A·m²) है, जो J/T के तुल्य है।
Q2. The magnetic declination at a place is best defined as:
किसी स्थान पर चुंबकीय दिक्पात (डेक्लिनेशन) को सबसे अच्छी तरह से इस प्रकार परिभाषित किया जाता है:
- A. the angle between the Earth's axis of rotation and its magnetic axis / पृथ्वी के घूर्णन अक्ष और उसके चुंबकीय अक्ष के बीच का कोण
- B. the angle made by the Earth's total field with the horizontal / पृथ्वी के कुल क्षेत्र द्वारा क्षैतिज के साथ बनाया गया कोण
- C. the horizontal component of the Earth's magnetic field / पृथ्वी के चुंबकीय क्षेत्र का क्षैतिज घटक
- D. the angle between the geographic meridian and the magnetic meridian / भौगोलिक याम्योत्तर और चुंबकीय याम्योत्तर के बीच का कोण
Solution
Declination is the angle between the geographic meridian and the magnetic meridian at a place; dip is the angle the field makes with the horizontal.
दिक्पात किसी स्थान पर भौगोलिक याम्योत्तर और चुंबकीय याम्योत्तर के बीच का कोण है; नति क्षेत्र द्वारा क्षैतिज के साथ बनाया गया कोण है।
Q3. The Bohr magneton, which is the natural unit of atomic magnetic moment, has an approximate value of:
बोर मैग्नेटॉन, जो परमाणविक चुंबकीय आघूर्ण का प्राकृतिक मात्रक है, का सन्निकट मान है:
- A. 9.27 × 10⁻²⁸ J/T
- B. 9.27 × 10⁻²⁴ J/T
- C. 6.63 × 10⁻³⁴ J/T
- D. 1.6 × 10⁻¹⁹ J/T
Solution
The Bohr magneton μB = eℏ/2mₑ ≈ 9.27 × 10⁻²⁴ J/T (equivalently A·m²).
बोर मैग्नेटॉन μB = eℏ/2mₑ ≈ 9.27 × 10⁻²⁴ J/T (तुल्य रूप से A·m²) होता है।
Frequently asked questions
How many questions are in the NEET UG Magnetism, EMI & AC: Magnetism and Matter – Chapter Test?
18 questions for 18 marks, to be answered in 20 minutes.
Is there negative marking in the NEET UG Magnetism, EMI & AC: Magnetism and Matter – Chapter Test?
Yes — 0.25 marks are deducted for each wrong answer, as in the real exam pattern.
Which topics does the NEET UG Magnetism, EMI & AC: Magnetism and Matter – Chapter Test cover?
Magnetism, EMI & AC (18 questions).
Is the NEET UG Magnetism, EMI & AC: Magnetism and Matter – Chapter Test free?
It is part of the NEET UG 2027 Mock Test Series (134 tests, ₹299). You can first try Biology in Human Welfare – Topic Test for free.
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