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Questions and Answers
A wire carrying current is placed perpendicular to a uniform magnetic field. What change will result in the greatest increase in the force on the wire?
A wire carrying current is placed perpendicular to a uniform magnetic field. What change will result in the greatest increase in the force on the wire?
- Doubling the current in the wire. (correct)
- Halving the magnitude of the magnetic field.
- Doubling the length of the wire.
- Reversing the direction of the current.
A concave lens always forms a real image.
A concave lens always forms a real image.
False (B)
Explain why a ship made of steel can float on water despite steel being denser than water.
Explain why a ship made of steel can float on water despite steel being denser than water.
The ship floats because of its shape, which displaces a volume of water that weighs more than the ship itself. This is due to the principle of upthrust.
In a household circuit, appliances are connected in ______ so that each receives the same voltage and can operate independently.
In a household circuit, appliances are connected in ______ so that each receives the same voltage and can operate independently.
Match the following electromagnetic phenomena with their applications:
Match the following electromagnetic phenomena with their applications:
Flashcards
Refraction
Refraction
The phenomenon where a light ray bends as it passes from one transparent medium to another.
Upthrust (Buoyancy)
Upthrust (Buoyancy)
The upward force exerted by a fluid that opposes the weight of an immersed object.
Electromagnetism
Electromagnetism
The branch of physics dealing with the forces arising from electric charges and magnetic fields.
Magnetism
Magnetism
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Household Circuit
Household Circuit
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