Electricity & Magnetism

Electric circuits, fields, magnetism, and electromagnetic induction.

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QUESTION NO 01

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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QUESTION NO 02

Coulomb's law gives force between?

Answer: Two point charges

F = k|q₁q₂|/r² between two point charges.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 03

Dielectric constant of vacuum is?

Answer: 1

Relative permittivity of free space κ = 1.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 04

Capacitance of a parallel-plate capacitor increases if?

Answer: Plate area increases

C = ε₀A/d (or κε₀A/d); larger A or smaller d increases C.

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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QUESTION NO 06

Kirchhoff's loop rule is based on conservation of?

Answer: Energy

ΣΔV = 0 around a closed loop — energy conservation.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 07

Two resistors in series have equivalent resistance?

Answer: Sum of individual resistances

R_eq = R₁ + R₂ for series connection.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 08

Kirchhoff's loop rule is based on conservation of?

Answer: Energy

ΣΔV = 0 around a closed loop — energy conservation.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 09

A transformer works on the principle of?

Answer: Mutual induction

Transformers use mutual electromagnetic induction between coils.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 10

Dielectric constant of vacuum is?

Answer: 1

Relative permittivity of free space κ = 1.

Shahzad Mahota @shahzad-mahota

302 Quizzes

2930 Questions

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Electricity & Magnetism

More topics in Physics

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Electricity & Magnetism

Mechanics

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Faraday's law relates induced emf to?

Coulomb's law gives force between?

Dielectric constant of vacuum is?

Capacitance of a parallel-plate capacitor increases if?

Power dissipated in a resistor is?

Kirchhoff's loop rule is based on conservation of?

Two resistors in series have equivalent resistance?

Kirchhoff's loop rule is based on conservation of?

A transformer works on the principle of?

Dielectric constant of vacuum is?

Electricity & Magnetism

More topics in Physics

All

Electricity & Magnetism

Mechanics

Modern Physics

Optics

Thermodynamics

Waves & Sound

Explore

Faraday's law relates induced emf to?

Explanation

Coulomb's law gives force between?

Explanation

Dielectric constant of vacuum is?

Explanation

Capacitance of a parallel-plate capacitor increases if?

Explanation

Power dissipated in a resistor is?

Explanation

Kirchhoff's loop rule is based on conservation of?

Explanation

Two resistors in series have equivalent resistance?

Explanation

Kirchhoff's loop rule is based on conservation of?

Explanation

A transformer works on the principle of?

Explanation

Dielectric constant of vacuum is?

Explanation