Grade 9 Current, Voltage and Resistance Quiz
Quiz by Julia Malcolm
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12 questions
Show answers
- Q1What is the unit for Q- Charge?Amperes (A)Coloumbs (C)Voltage (V)Ohms60s
- Q2What is the name of the device that measures current?voltmerammeterelectrometerohmmeter300s
- Q3Complete the following sentence: When using an ammeter, it should be placed in series to measure the current through a component. A voltmeter should be placed in ______ to measure the potential difference across a component.serieslineparallel60s
- Q4In the circuit diagram, where should another switch be placed so that both lamps can be turned on or off independently?ADBC60s
- Q5At which point in the circuit – A, B, C or D – should an ammeter be placed to measure the total current flowing through this circuit?DABC60s
- Q6In the same circuit diagram, where should a switch be placed that would turn off both lamps at the same time?CABD60s
- Q7Is the following circuit, a series or parallel circuit?seriesparallel60s
- Q8Which sentence below best describes the energy transfer in a battery (cell)?Chemical to electrical.Kinetic to electrical.Chemical to heat.Electrical to kinetic.60s
- Q9Calculate the amount of current through an electric toaster if it takes 900 C of charge to toast two slices of bread in 1.5 min.30C10C10A30A120s
- Q10What is the resistance of a lamp that draws 15A from a 240V circuit0.06 Ohms16 Ohms3600 Ohms120s
- Q11If it takes a current of 10A for 300 s to boil a kettle of water requiring 360,000 J of energy. What is the potential difference across the kettle?3000C120V1200V12000V300s
- Q12Calculate the current that flows through a hair dryer that uses 18000J of energy when it is plugged into a 120V outlet for 15 seconds.100A0.1A10A150C300s
