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WorksheetsLSS Electrical Systems
Total questions: 31
Worksheet time: 48mins
[13.1 Components of an Electrical System]
What does a basic electric circuit consist of?
Power source,
conducting wires,
& an electrical device.
Power source,
conducting wires, & a switch.
Power source,
conducting wires, a switch,
& an electrical device.
Conducting wires, a switch, resistor
& an electrical device.
What is the correct Circuit Symbol for this component?
Which is the correct circuit symbol for a bulb?
Draw the circuit diagram with the following components:
1 Battery, Open switch, 1 Bulb, Connecting wires, Ammeter, Voltmeter & Resistor.
Which option is correct?
A = Variable resistor
B = Fixed resistor
A = Fuse
B = Variable resistor
A = Fuse
B = Fixed resistor
A = Fixed resistor
B = Variable resistor
A variable resistor is also called a
(a)
What is the difference between a Fixed Resistor and Variable Resistor?
In the figure, the terminals of the ammeter and the voltmeter are marked with a '+' and '-'.
Which one of the circuits shows the meters correctly connected?
Circuit K
Circuit L
Circuit M
Circuit N
The positive terminal of both ammeter and voltmeter should be connected to the (a) terminal of the dry cell.
Conventional current flow will be from the __________ terminal of dry cell to _________ terminal of dry cell.
(a)
What is the function of the dry cell?
What is an electrical charge?
What is the purpose of connecting wires?
What is the energy conversion that takes place in an electrical device (e.g. bub)?
Define Current.
What is the function of an Ammeter?
To measure the voltage through an electric circuit.
To measure the current flowing through an electric circuit.
To measure the resistance through an electric circuit.
The S.I unit of electric current is (a)
To measure the current flowing through a circuit, the ammeter must be connected in (a) within a circuit.
Define Potential Difference.
What is the function of a Voltmeter?
Measures the current flow through an electric circuit.
Measures the potential difference between two points in an electric circuit.
Measures the resistance through an electric circuit.
The S.I unit of potential difference is (a) .
To measure the potential difference across an electrical component, a voltmeter has to be connected in (a) to the electrical component.
The diagram shows a voltmeter that is incorrectly connected in a electric circuit. Draw on the image below the correct way of connecting the voltmeter to measure the potential difference across the fixed resister.
Define Resistance.
Electrical conductors have (a) resistance to current.
Electrical insulators have (a) resistance to current.
The S.I unit of electrical resistance is (a)
Examples of Electrical conductors are
plastics, glass
copper, silver
tungsten, plastics
nichrome, glass
When an electric current flows through tungsten and nichrome, electrical energy can be converted to _______ & _______ energy.
(a)
What are Resistors?
What is the effect of adding a Resistor to an electrical circuit?
