Magnetism & Lorentz Force

Magnetic fields, field lines, and moving charges. Ideal for students preparing board exams and competitive tests.

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QUESTION NO 01

Dielectric constant of vacuum is?

Answer: 1

Relative permittivity of free space κ = 1.

Shahzad Mahota @shahzad-mahota

52 Quizzes

430 Questions

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QUESTION NO 02

A transformer works on the principle of?

Answer: Mutual induction

Transformers use mutual electromagnetic induction between coils.

Shahzad Mahota @shahzad-mahota

52 Quizzes

430 Questions

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QUESTION NO 03

Kirchhoff's loop rule is based on conservation of?

Answer: Energy

ΣΔV = 0 around a closed loop — energy conservation.

Shahzad Mahota @shahzad-mahota

52 Quizzes

430 Questions

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QUESTION NO 04

Kirchhoff's junction rule is based on conservation of?

Answer: Charge

ΣI = 0 at a junction — charge conservation.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 05

Power dissipated in a resistor is?

Answer: I²R

P = I²R = V²/R = VI.

Shahzad Mahota @shahzad-mahota

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430 Questions

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QUESTION NO 06

SI unit of magnetic field (B) is?

Answer: Tesla

SI unit of B is the tesla (T); 1 T = 1 Wb/m².

Shahzad Mahota @shahzad-mahota

52 Quizzes

430 Questions

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QUESTION NO 07

Lenz's law says induced current?

Answer: Opposes the change causing it

Induced effects oppose the change in flux (energy conservation).

Shahzad Mahota @shahzad-mahota

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QUESTION NO 08

Faraday's law relates induced emf to?

Answer: Rate of change of magnetic flux

ε = −dΦ_B/dt.

Shahzad Mahota @shahzad-mahota

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430 Questions

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QUESTION NO 09

Magnetic field lines?

Answer: Form closed loops

B-field lines are continuous closed loops (no magnetic monopoles).

Shahzad Mahota @shahzad-mahota

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430 Questions

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QUESTION NO 10

SI unit of capacitance is?

Answer: Farad

Capacitance is measured in farads (F).

Shahzad Mahota @shahzad-mahota

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430 Questions

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Magnetism & Lorentz Force

Dielectric constant of vacuum is?

A transformer works on the principle of?

Kirchhoff's loop rule is based on conservation of?

Kirchhoff's junction rule is based on conservation of?

Power dissipated in a resistor is?

SI unit of magnetic field (B) is?

Lenz's law says induced current?

Faraday's law relates induced emf to?

Magnetic field lines?

SI unit of capacitance is?

Published By

Shahzad Mahota

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00

00

00

00

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Magnetism & Lorentz Force

Dielectric constant of vacuum is?

Explanation

A transformer works on the principle of?

Explanation

Kirchhoff's loop rule is based on conservation of?

Explanation

Kirchhoff's junction rule is based on conservation of?

Explanation

Power dissipated in a resistor is?

Explanation

SI unit of magnetic field (B) is?

Explanation

Lenz's law says induced current?

Explanation

Faraday's law relates induced emf to?

Explanation

Magnetic field lines?

Explanation

SI unit of capacitance is?

Explanation

Published By

Shahzad Mahota

00

00

00

00

00

00

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