AQA - A Level Physics - Electricity #1

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Last updated: July 8, 2020

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First submitted	July 8, 2020
Times taken	10
Average score	18.8%
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Hint	Answer
Define Current (A)	Rate of flow of charge (Cs-1)
Give the equation for Total charge transferred (C)	I×t (As)
Define the Amp	Coulomb per second
Define potential difference	Work done per unit charge between two points
What is the SI unit for potential difference	Volts
Define the volt	Joule per Coulomb (V = E/Q)
Define EMF	Work done per unit charge supplied to the charge carriers
What are the units of power	Watts

Hint	Answer
Give the equation for electrical power	P = IV P = V^2 / R P = I^2 R
What is Ohm's Law	The p.d. across a component is proportional to current provided physical conditions don't change
What is the equation for Resistance	V÷I
Units equivalent to an Ohm	VA^-1
How is an ammeter connected?	Series
How is an voltmeter connected?	Parallel
What is the resistance of an ideal voltmeter	infinite
What is the resistance of an ideal ammeter	zero

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