Physics P4-electric circuits-knowledged questions
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29 Terms
What is the unit of potential difference?
Volt (V)
What is the unit of current?
Amps (A)
What is the unit of resistance?
Ohm (Ω)
What is the unit of charge?
Coulomb (C)
What is the unit of power?
Watt (W)
What is the unit of time?
second (s)
What is the unit of energy and work done?
Joule (J)
What is the name for a circuit with only one branch?
Series Circuit
What is the name for a circuit with 2 or more branches?
Parallel circuit
What is the symbol for a bulb?
What is the symbol for a resistor?
What is the symbol for a cell?
What is the symbol for a battery?
What is the symbol for a diode?
What is the symbol for a variable resistor?
What is the symbol for a fuse?
What is the symbol for an ammeter?
What is the symbol for a voltmeter?
What is the symbol for a Light dependent resistor (LDR)?
What is the symbol for a Thermistor?
What component does this graph show?
Bulb/filament bulb
What component does this graph show?
Fixed resistor
What component does this graph show?
Diode
Write the equation which links current time and charge
Charge = current x time
Write the equation which links current potential difference and resistance
Potential difference = current x resistance
Write the equation which links potential difference work done and charge
Potential difference = work done ÷ charge
What is the name for the buildup of stationary electric charge?
Static electricity
What force causes electrons to move from one place to another when objects rub together?
Friction
Do you need 2 insulators 2 conductors or 1 of each to build up static electricity?
2 insulators