UEECD0046 & UEECD0044 Solve problems in d.c. circuits (14016)
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Following circuit has a voltmeter and an ammeter connected as shown below. The Voltmeter reading is 12V and Ammeter reading is 0.5A. Calculate the power consumed by the circuit.
If an electric welding machine takes a current of 45 amperes for 30 seconds, what quantity of electric charge is transported to the welder?
Complete the table below to indicate how different circuit conditions affect the operation of a single path d.c. circuit.
Power may be defined as
Milli is the prefix used when a unit is multiplied by:
Kilo is the prefix used when a unit is multiplied by:
Complete the table below to indicate how electricity is utilised by the listed appliances.
Appliance | Uses electricity to produce |
Electric motor |
|
Electric hot water tank |
|
LED lamp |
|
Which two sections of an electrical power system deliver electricity to domestic residences?
The table below lists examples of electricity production using different sources of energy. Indicate for each process whether the energy source is renewable or non-renewable.
Electricity Production Process | Renewable or Non-Renewable |
Coal fired boiler that converts water into steam which spins a turbine which in turn spins a generator to produce electricity. |
|
Wind powered turbine which spins a generator via a gear box to produce electricity. | |
Water from a dam is gravity fed to a turbine which spins a generator to produce electricity. | |
Nuclear powered boiler converts water to steam which spins a turbine which in turn spins a generator to produce electricity. | |
Solar radiation falls on photovoltaic panels to produce electricity. |
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