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PHYSICS

Physics
The strength of an electromagnet can be increased by

Increasing the number of turns
Increasing current supply
All of these
Increasing the length of the coiled wire

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Physics
The unit of Planck's constant is

Js–2
Js2
Js
J/s

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Physics
When a vehicle passes, TV reception gets distorted. This is because

Spark plug creates electromagnetic disturbances
Vehicle pollution affects the performance of the TV components
Metal reflects radiowaves
Modern vehicles use electroignition system

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Physics
The unit of magnetic permeability is

Henry/meter
Weber
Weber/meter
Henry

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Physics
An Electric generator is based on which of the following scientific principles?

Faraday's law of Electromagnetic Induction
Laws of Thermodynamics
Super Conductivity
Newton's Law of Motion

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