Physics 10th ICSE: Current Electricity [Semester 2] Flashcards

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1
Q

What is the S.I unit of charge

A

coulomb

Symbol: C

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2
Q

What is current? State its S.I unit

A

Current is the flow of charge.

Its S.I unit is ampere | Symbol: A

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3
Q

State the 2 types of charge

A

Positive and negative charge
The body losing electrons becomes positively charged
The body gaining electrons becomes negatively charged.

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4
Q

How do the 2 charges react to each other

A

Like charges repel and unlike charges attract

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5
Q

Define potential at a point

A

The amount of work done per unit charge in bringing a positive test charge from infinity to that point

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6
Q

What is the unit of electric potential?

A

V (potential) = W (work)/Q (charge)
ie. V=W/Q

therefore,

1 volt = 1 joule / 1 coulomb = 1 J C^-1

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7
Q

What is Potential Difference between 2 points?

A

Potential Difference difference between 2 point

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