Make sure you go through and revise the fourth lesson of Practical Electricity, so that you do better in this test. As this test can be taken only once, and your score will be saved.
Make sure you have a scientific calculator with you before you start, for calculations.
This test will show, how well you are prepared for the exam. So don’t forget to revise before you start.
This mega test includes 30 Practical electricity Questions.
Total time for this mega test is 30 minutes.
You have 01 minute for each question.
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A 100 W lamp is switched on for five hours each day for three weeks.
The cost of one unit of electricity is $0.24.
How much does it cost to run the lamp for this time?
A $0.36 B $0.84 C $2.52 D $25.20
An immersion heater is labelled 24V, 120W.
What is the current in the heater when it is connected to a 24V supply?
When the flash on a camera is used, a charge of 1.5 C flows through the flash-tube in 0.0030 s.
The average voltage across the flash-tube is 3600 V.
What is the electrical energy supplied to the flash-tube and what is the average power supplied?