electric fields Flashcards by lubna alkindi

Q

describe how a uniform electric field can be demonstrated in a labroatory

A

Connec two parallel plates to a circuit. Dip them in paraffin oil and sprinkle some semolina powder over it. The powder will align itself in the field showing that the field is uniform.

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Q

is electric field strength a vector?

A

yes

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Q

is potential difference a vector?

A

no

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Q

is magnetic flux density a vector?

A

yes

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Q

show the graph of induced emf against time for a coil travelling through a magnet

A

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Q

A

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